Slow-Cooker Beef and Mushroom Ragu with Pappardelle

Short answer

• Brown 2 pounds of beef chuck cut into pieces about 1 1/2 inches across, then brown 12 to 16 ounces of thickly sliced cremini mushrooms, both in batches in a hot skillet. Soften onion, carrot, and celery in the same pan, add garlic and tomato paste, and deglaze with 1 cup of dry red wine. Transfer everything to a slow cooker with a 28 ounce can of crushed tomatoes, 1 cup of low sodium beef broth, oregano, and a bay leaf. Always start with fully thawed beef, never frozen beef, and keep the lid in place while cooking. Cook on low for 7 to 8 hours or on high for 4 to 5 hours, until the beef shreds easily with a fork. Shred the beef in the sauce, cook 1 pound of dried pappardelle separately until just shy of al dente, and toss the pasta with the ragu and splashes of pasta water. Refrigerate leftovers in shallow covered containers within 2 hours, use them within 3 to 4 days, and reheat them to 165 degrees Fahrenheit. The dish as served contains wheat and milk, so read the allergen note before serving guests.

Introduction

There are slow cooker meals that taste like a shortcut, and then there are slow cooker meals that taste like a Sunday sauce that simmered all afternoon while you did something else entirely. Beef and mushroom ragu belongs firmly in the second group. Tough, well marbled beef breaks down over long, gentle heat into tender strands, mushrooms give the sauce an earthy depth that beef alone cannot provide, and tomatoes, wine, and aromatics slowly concentrate into something rich without needing constant attention. Served over wide pappardelle ribbons, which catch the sauce in a way thin spaghetti never quite manages, it becomes a dinner that feels special enough for guests and easy enough for a busy weekday.

The appeal is not just convenience. Ragu is a sauce built on patience. Browning the beef first, softening onions, carrots, and celery, and then letting everything cook low and slow allows flavors to develop in layers. Mushrooms are essential here, not an afterthought. They shrink as they cook, concentrate in flavor, and add a savory quality that rounds out the beef and tomato. Dried porcini add even more depth, but fresh cremini or button mushrooms, properly browned, will carry the dish on their own.

This article gives the full recipe for slow cooker beef mushroom ragu, explains how to choose the beef, how to brown mushrooms so they taste meaty rather than soggy, how to build and finish the sauce, and how to serve it with pappardelle. It also covers slow cooker safety, storage, reheating, and allergen notes. The food safety guidance was checked against FoodSafety.gov, the United States Department of Agriculture Food Safety and Inspection Service guidance on slow cookers and on leftovers, and the Food and Drug Administration guidance on food allergens on 31 October 2026.

This is original working guidance for home cooks, not a tested kitchen report. Cooking times are guidance and will vary with your slow cooker, the size of your beef pieces, and how full the pot is. Check meat temperatures with a thermometer where safety matters, and check labels for allergens, especially in broth, tomato products, and pasta, since brands vary. If anyone at the table has a mushroom allergy, this is not a dish to adapt by simply leaving mushrooms out, because they are central to the flavor. Choose a different ragu instead.

Choosing the Beef and the Mushrooms

The best beef for a slow cooker ragu is a tough, marbled cut that benefits from long cooking, not a lean, tender steak. Beef chuck, cut into pieces about 1 1/2 inches across, is the classic choice. It contains connective tissue that breaks down into gelatin during slow cooking, which gives the sauce body and the meat a silky, shreddable texture. Beef shin, also called shank, works similarly, though it contains bone that must be removed before serving. Avoid stewing beef labeled simply as stew meat if you do not know what cut it is, because it can be a mixture of cuts that cook unevenly. Buy chuck roast and cut it yourself when you can, trimming only the largest pieces of external fat and leaving the marbling.

Cremini mushrooms, sometimes sold as baby bella, have more flavor than white button mushrooms and hold up well in a long cook. A mixture of cremini and shiitake adds complexity, while dried porcini, soaked in warm water and chopped, adds a deep, woodsy note. If you use dried porcini, strain the soaking liquid through a fine sieve or coffee filter to remove grit, and add the strained liquid to the sauce, because it carries much of the flavor. Slice fresh mushrooms thickly, about 1/4 inch, so they do not disappear during cooking and give the finished dish texture.

For 2 pounds of beef, use at least 12 ounces of fresh mushrooms, and up to a full pound if you love mushrooms. Mushrooms lose roughly half their volume as they cook, and a generous amount ensures the flavor survives hours of simmering. Do not reduce the mushrooms to a garnish. In this ragu, they are a co-star. Keep perishable ingredients refrigerated until preparation time, and if you cut up meat and vegetables in advance, store them separately in the refrigerator, as the Food Safety and Inspection Service advises, because bacteria multiply rapidly at room temperature.

Why Browning Matters, Even in a Slow Cooker

It is tempting to put everything raw into the slow cooker and walk away, and for some dishes that works. For ragu, skipping browning costs flavor that slow cooking cannot replace. Browning creates browned, savory compounds that add depth to the finished sauce, for both the beef and the mushrooms. Mushrooms browned without crowding develop a roasted, almost meaty flavor, while mushrooms steamed in their own liquid taste flat and rubbery. Browning takes about 20 minutes in total, and it is the most important step for a ragu that tastes like it simmered for hours.

Brown the beef in batches. If you crowd the pan, the meat steams instead of browning, and you will end up with gray meat and a pool of liquid. Use a large, heavy skillet or Dutch oven, heat oil until it shimmers, and sear the beef on at least two sides, leaving space between pieces. Do not worry if the meat is still raw in the center. It will finish cooking in the slow cooker. Brown the mushrooms in the same pan in the same way, letting them sit undisturbed until golden.

After browning, soften the aromatics in the same pan. Onion, carrot, and celery, diced small, cooked in the remaining fat until soft and lightly golden, form the flavor base. Add garlic for the last minute only, because garlic burns quickly. Stir in tomato paste and cook it briefly until it darkens slightly. Deglaze with red wine, scraping up the browned bits stuck to the bottom, because those bits are concentrated flavor. This sequence, brown, soften, deglaze, is the foundation of a good ragu.

Ingredients

This recipe makes about 6 hearty servings.

For the ragu:

• 2 pounds beef chuck, cut into 1 1/2 inch pieces
• Salt and black pepper, to taste
• 2 tablespoons olive oil, divided
• 12 to 16 ounces cremini mushrooms, thickly sliced
• 1 ounce dried porcini mushrooms, optional, soaked in 1 cup warm water for 20 minutes
• 1 large yellow onion, finely diced
• 2 carrots, finely diced
• 2 celery stalks, finely diced
• 4 cloves garlic, minced
• 2 tablespoons tomato paste
• 1 cup dry red wine, such as Chianti or Merlot
• 1 can (28 ounces) crushed tomatoes
• 1 cup low sodium beef broth
• 2 teaspoons dried oregano, or 1 tablespoon fresh oregano leaves
• 1 bay leaf
• 1 Parmesan rind, optional, well washed
• 1 tablespoon balsamic vinegar, optional, to finish

For serving:

• 1 pound dried pappardelle, or 1 1/2 pounds fresh pappardelle
• Freshly grated Parmesan cheese, to taste
• Chopped fresh flat leaf parsley, for serving
• Extra virgin olive oil, for drizzling
• Crusty bread, for the table, optional

Use a dry red wine you would drink, not a bottle labeled cooking wine, which is often salty and harsh. If you prefer to cook without alcohol, replace the wine with an equal amount of beef broth plus a tablespoon of balsamic vinegar or red wine vinegar, and use it to deglaze the pan in the same way. Check the labels on broth, tomato products, pasta, and cheese each time you buy them, because ingredients can change.

Method: Step by Step

Step 1: Season and brown the beef

Season the beef generously with salt and pepper. Heat 1 tablespoon of olive oil in a large, heavy skillet over medium high heat until it shimmers. Brown the beef in two or three batches, searing each piece for 2 to 3 minutes per side, then transfer the browned beef to the slow cooker insert. Add a little more oil if the pan becomes dry. Do not wash the pan. The browned residue on the bottom is flavor.

Step 2: Brown the mushrooms

Add the remaining oil, then the sliced fresh mushrooms in a single layer, and let them cook undisturbed for 3 to 4 minutes until golden on one side, then turn and brown the other side. Season lightly with salt. Work in batches if the pan is crowded. Transfer the mushrooms to the slow cooker. If you are using dried porcini, drain them, strain the soaking liquid through a fine sieve or coffee filter, chop the porcini, and add them to the slow cooker. Keep the strained liquid for the sauce.

Step 3: Soften the aromatics and deglaze

Reduce the heat to medium, add the onion, carrots, and celery, and cook for 7 to 8 minutes, stirring occasionally, until soft and lightly golden. Add the garlic and tomato paste and cook for 1 to 2 minutes more, stirring constantly, until the tomato paste darkens slightly. Pour in the red wine and scrape the bottom of the pan to release the browned bits. Let the wine simmer for 2 minutes, then pour the entire mixture over the beef and mushrooms.

Step 4: Add the sauce ingredients and cook

Stir in the crushed tomatoes, beef broth, strained porcini liquid if using, oregano, bay leaf, and Parmesan rind if using. The liquid should come about three quarters of the way up the meat, because the beef and mushrooms will release liquid as they cook. Cover and cook on low for 7 to 8 hours, or on high for 4 to 5 hours, until the beef shreds easily with a fork. Keep the lid in place, removing it only to stir or check for doneness, as the Food Safety and Inspection Service instructs, because the tightly covered container and its steam are part of how the process cooks food safely.

Step 5: Finish the sauce

Remove and discard the bay leaf, and remove the Parmesan rind. Shred the beef directly in the pot with two forks, stirring it back into the sauce. If the sauce is thinner than you like, cook on high with the lid off for 30 minutes, or simmer a cup of sauce in a pan until reduced and stir it back in. If it is too thick, stir in a splash of broth or pasta water. Taste and adjust salt, pepper, and acidity. A teaspoon of balsamic vinegar can brighten a flat sauce. The finished ragu should be rich, thick enough to coat pasta, and deeply savory.

Step 6: Cook the pappardelle and serve

Bring a large pot of well salted water to a rolling boil and cook dried pappardelle until just shy of al dente, usually 1 minute less than the package time. Fresh pappardelle cooks in 2 to 3 minutes, so watch it closely. Reserve at least 1 cup of pasta cooking water before draining, because its starch helps the sauce cling. Drain the pasta, then toss it directly with the ragu, adding splashes of pasta water until the sauce coats every ribbon evenly. Do not rinse the pasta, because rinsing removes that starch. Serve immediately in warm bowls, topped with Parmesan, parsley, and a drizzle of olive oil.

Slow Cooker Choices, Timing, and Safety

Not all slow cookers cook at the same rate. The Food Safety and Inspection Service explains that a slow cooker cooks foods slowly at a low temperature, generally between 170 degrees Fahrenheit and 280 degrees Fahrenheit, and that the direct heat from the pot, the lengthy cooking time, and the steam within the tightly covered container combine to destroy bacteria and make the slow cooker a safe process for cooking foods. Older cookers tend to run cooler and newer models hotter, so the same recipe can finish an hour earlier or later depending on your pot.

The low setting is generally better for ragu, because it gives connective tissue time to break down gently without drying the meat. The Food Safety and Inspection Service notes that if possible, you can turn the cooker on the highest setting for the first hour and then to low, but that it is safe to cook foods on low the entire time. If you must use high, check the beef at 4 hours rather than waiting for 5. A properly filled cooker cooks more evenly than a nearly empty one, so if you are halving the recipe, use a smaller cooker if you have one.

Food safety for this recipe is not optional detail. Always thaw meat or poultry before putting it into a slow cooker. Do not cook frozen beef in a slow cooker for this recipe. The Food Safety and Inspection Service states that rule directly, and its leftovers guidance explains why: bacteria grow rapidly between 40 degrees Fahrenheit and 140 degrees Fahrenheit. Thaw beef completely in the refrigerator before browning. Begin with a clean cooker, clean utensils, and a clean work area, and wash your hands before and during preparation. While food is cooking and once it is done, food stays safe as long as the cooker is operating. If you are not at home during the entire slow cooking process and the power goes out, throw away the food even if it looks done. If you are at home, finish cooking the ingredients immediately by some other means, and if the food was completely cooked before the power went out, it should remain safe for up to 2 hours in the cooker with the power off.

Beef that shreds easily is done, even if that happens an hour earlier than planned. Many extra hours on low will dry the meat and make the sauce greasy, so if your schedule is uncertain, refrigerate the finished ragu and reheat it the next day, when it often tastes better.

For safety, FoodSafety.gov lists beef steaks, roasts, and chops at 145 degrees Fahrenheit with a rest time of 3 minutes, and ground meat at 160 degrees Fahrenheit. This recipe uses whole pieces of chuck, not ground meat, and slow cooked chuck will pass well beyond the safe minimum long before it becomes tender. Tenderness is therefore the practical test here, while a thermometer remains the reliable way to verify a safe minimum internal temperature whenever you are in doubt.

Variations and What to Serve Alongside

A pork and beef ragu is a classic variation. Replace half the beef with boneless pork shoulder, cut the same way, and cook it identically. Pork shoulder adds a slightly sweeter richness that pairs well with mushrooms. FoodSafety.gov lists pork steaks, roasts, and chops at the same safe minimum as beef, 145 degrees Fahrenheit with a rest time of 3 minutes, and slow cooked pork shoulder will cook well past that minimum before it shreds. A mushroom forward version uses half the beef and double the mushrooms, but it is still a meat dish, not a vegetarian one, because the sauce structure depends on the gelatin and fat from the meat.

Use a dry red wine you would drink. Chianti, Merlot, and similar medium bodied reds work well. If you prefer to cook without alcohol, replace the wine as described in the ingredients notes. Serving sides should be simple, because the ragu is rich. A green salad with a sharp vinaigrette cuts through the fat, and roasted green beans add color and lightness. A Dutch oven version also works in a low oven, around 300 degrees Fahrenheit, for about 3 hours.

Troubleshooting

If the sauce tastes flat, it usually needs salt, acid, or both, not more cooking time. Taste, add salt a pinch at a time, then try a teaspoon of balsamic vinegar or a squeeze of lemon juice. If the sauce is greasy, let it rest for 10 minutes and skim fat from the surface, or refrigerate it overnight and lift off the solidified fat before reheating. Trim large fat caps before cooking, while leaving marbling intact.

If the beef is tough after the stated cooking time, it almost always needs more time, not higher heat. Toughness usually means connective tissue has not yet broken down, and an extra hour on low will often solve it. Check that the lid sealed properly, because a loose lid or repeated opening extends cooking time. If the mushrooms have disappeared, they were probably sliced too thin. Next time, slice them thicker and shred the beef gently.

If the sauce is too thin at serving, reduce a portion of it in a pan and stir it back in. If it is too thick, pasta water loosens it without diluting flavor. Do not add oil to the pasta water, which makes sauce slide off.

Storage, Leftovers, and Freezing

Ragu improves with a night in the refrigerator, but handle leftovers exactly as federal guidance directs. The Food Safety and Inspection Service states that within 2 hours of cooking food or after it is removed from an appliance keeping it warm, leftovers must be refrigerated, and that perishable foods left at room temperature for more than 2 hours should be thrown away, or after 1 hour if the temperature is over 90 degrees Fahrenheit. Do not leave cooked ragu sitting in a turned off slow cooker for hours.

Cool food rapidly. Divide large amounts of food into shallow containers, because a big pot of sauce cools slowly, inviting bacteria to multiply. Hot food can be placed directly in the refrigerator or be rapidly chilled in an ice or cold water bath first. Cover leftovers or seal them in storage containers, and refrigerate or freeze them immediately. Keep the refrigerator at 40 degrees Fahrenheit or below. Leftovers can be kept in the refrigerator for 3 to 4 days or frozen for 3 to 4 months. Although safe indefinitely when kept frozen, frozen leftovers can lose moisture and flavor over longer storage. Freeze ragu in portion sized containers, leaving headspace for expansion, and label each container. Pasta is best cooked fresh for each serving. Store ragu and pasta separately.

Thaw frozen leftovers safely in the refrigerator, in cold water in a leak proof package or plastic bag, or in the microwave oven. Never thaw leftovers on the counter. After refrigerator thawing, use the food within 3 to 4 days. Reheating leftovers in a slow cooker is not recommended. Reheat cooked food on the stove top, in a microwave, or in a conventional oven until it reaches 165 degrees Fahrenheit as measured with a food thermometer, and reheat sauces, soups, and gravies by bringing them to a rolling boil. Cover leftovers to reheat, because covering ensures that food heats all the way through. In a microwave, cover and rotate the food and check the temperature in several places. Once reheated ragu is hot, it can be placed in a preheated slow cooker to keep it hot for serving at least 140 degrees Fahrenheit. It is safe to refreeze food remaining after reheating previously frozen leftovers to 165 degrees Fahrenheit, and a portion taken from a container thawed in the refrigerator can be returned to the freezer without reheating, in each case with some loss of quality.

Allergen and Dietary Notes

This section is factual information for planning and serving, not medical advice. As served with pappardelle and Parmesan, this dish contains wheat, in the pasta and any crusty bread, and milk, in the Parmesan cheese and rind. The Food and Drug Administration lists nine foods, and ingredients containing their proteins, as major food allergens: milk, egg, fish, crustacean shellfish, tree nuts, wheat, peanuts, soybeans, and sesame. Sesame became the ninth major food allergen under the Food Allergy Safety, Treatment, Education, and Research Act, with labeling required from 1 January 2023.

Mushrooms are central to this recipe and are not one of the nine major allergens, but a guest can be allergic or sensitive to any food. Ask about mushroom allergy before you plan this dish, not at the table. Do not assume that picking mushrooms out of a shared pot makes the remaining sauce safe for a guest who cannot eat them, because the mushrooms cooked in the same sauce. Cook a separate dish with clean utensils, or choose a different menu. The ragu itself, without pasta, is generally free of wheat as an ingredient if your broth, tomato products, and wine carry no wheat ingredient, but you must check labels rather than assume. Serve it over certified gluten free pappardelle or over polenta, and keep wheat pasta and bread separate to avoid cross contact. The Food and Drug Administration advises reading the entire ingredient list every time a product is bought, because ingredients can change.

Frequently Asked Questions

Can I skip browning the beef and mushrooms?

You can, and the dish will still be edible, but it will taste noticeably less rich. Browning creates flavor that slow cooking does not replace, so if you have 20 minutes, spend them on this step. Do not skip the safety steps to save time. Start with thawed beef and keep perishable ingredients refrigerated until preparation.

Can I use a different pasta shape?

Yes, though pappardelle is the best match for a chunky ragu. Tagliatelle is the closest substitute, and rigatoni also holds chunky sauce well. Avoid thin spaghetti or angel hair, which will be overwhelmed by the sauce. Cook any shape separately and toss it with the hot ragu at serving, rather than cooking pasta in the slow cooker.

Do I need the Parmesan rind?

No, it is optional, but it adds savory depth as it simmers. The sauce will still be good without one, especially if you finish with grated Parmesan at serving. Remove and discard the rind before serving, along with the bay leaf.

Can I cook the beef from frozen in the slow cooker?

No. Always thaw meat or poultry before putting it into a slow cooker. That is the direct instruction in the Food Safety and Inspection Service guidance, given because a slow cooker may take several hours to reach a safe, bacteria killing temperature and frozen meat spends too long in the danger zone between 40 degrees Fahrenheit and 140 degrees Fahrenheit, where bacteria grow rapidly. Thaw beef completely in the refrigerator before browning. The only exception in that guidance is a commercially frozen slow cooker meal prepared according to the manufacturer instructions, which this recipe is not.

Is this dish gluten free?

The ragu itself, without pasta, is generally free of wheat as an ingredient if your broth, tomato products, and wine are free of wheat ingredients, but you must check labels. Wheat is one of the nine major food allergens listed by the Food and Drug Administration. Serve the ragu over certified gluten free pappardelle or over polenta. As served in the main recipe, with wheat pappardelle and bread, the meal is not gluten free.

How do I know when the beef is done?

The beef is done for shredding when it pulls apart easily with a fork and offers no resistance. If it still feels firm, give it more time on low. For safety context, FoodSafety.gov lists whole cuts of beef at 145 degrees Fahrenheit with a rest time of 3 minutes, and leftovers of any type at 165 degrees Fahrenheit. Slow cooked chuck cooks for hours in sauce and will be well past the safe minimum before it is tender, so tenderness governs the timing here, while a thermometer is the reliable check for a safe minimum internal temperature.

How long do leftovers keep, and how should I reheat them?

Refrigerate leftovers in shallow covered containers within 2 hours after cooking, or within 1 hour if the temperature is over 90 degrees Fahrenheit, and keep them for 3 to 4 days in the refrigerator or 3 to 4 months frozen. Thaw frozen ragu in the refrigerator, in cold water in a leak proof bag, or in the microwave, never on the counter. Do not reheat leftovers in a slow cooker. Reheat them on the stove top, in a microwave, or in a conventional oven to 165 degrees Fahrenheit as measured with a food thermometer, bringing this sauce to a rolling boil, and cover them while reheating.

Sources & references

• FoodSafety.gov, Cook to a Safe Minimum Internal Temperature. Used for the safe minimum internal temperature chart, last updated 21 November 2024: beef, bison, veal, goat, and lamb steaks, roasts, and chops at 145 degrees Fahrenheit with a rest time of 3 minutes, ground meat and sausage at 160 degrees Fahrenheit, pork steaks, roasts, and chops at 145 degrees Fahrenheit with a rest time of 3 minutes, casseroles at 165 degrees Fahrenheit, leftovers of any type at 165 degrees Fahrenheit, and the instruction to always use a food thermometer to check whether meat has reached a safe minimum internal temperature.
• United States Department of Agriculture, Food Safety and Inspection Service, Slow Cookers and Food Safety. Used for slow cookers cooking foods slowly at a low temperature, generally between 170 degrees Fahrenheit and 280 degrees Fahrenheit, the direct heat, lengthy cooking, and steam within the tightly covered container combining to destroy bacteria, beginning with a clean cooker, utensils, and work area and washing hands before and during preparation, keeping perishable foods refrigerated until preparation time and storing meat and vegetables cut in advance separately in the refrigerator, always thawing meat or poultry before putting it into a slow cooker with commercially frozen slow cooker meals prepared according to manufacturer instructions as the stated exception, keeping the lid in place and removing it only to stir food or check for doneness, using the highest setting for the first hour if possible while cooking on low the entire time is also safe, food staying safe as long as the cooker is operating, discarding food if the power goes out while you are not at home and the related at home guidance, and storing leftovers in shallow covered containers and refrigerating within 2 hours after cooking, with reheating in a slow cooker not recommended, reheating on the stove, in a microwave, or in a conventional oven to 165 degrees Fahrenheit, and holding hot food in a preheated slow cooker at least 140 degrees Fahrenheit.
• United States Department of Agriculture, Food Safety and Inspection Service, Leftovers and Food Safety. Used for bacteria growing rapidly between 40 degrees Fahrenheit and 140 degrees Fahrenheit, refrigerating leftovers within 2 hours of cooking or 1 hour if the temperature is over 90 degrees Fahrenheit and discarding perishable foods left longer, cooling food rapidly in shallow containers with hot food placed directly in the refrigerator or chilled in an ice or cold water bath, covering and sealing leftovers, keeping leftovers in the refrigerator for 3 to 4 days or frozen for 3 to 4 months with frozen leftovers safe indefinitely but losing moisture and flavor over longer storage, safe thawing in the refrigerator, cold water in a leak proof package, or the microwave, reheating leftovers to 165 degrees Fahrenheit as measured with a food thermometer with sauces, soups, and gravies brought to a rolling boil and leftovers covered during reheating, and refreezing rules for previously frozen leftovers.
• Food and Drug Administration, Have Food Allergies? Read the Label. Used for the nine major food allergens and ingredients containing their proteins accounting for the large majority of severe food allergic reactions: milk, egg, fish, crustacean shellfish, tree nuts, wheat, peanuts, soybeans, and sesame, for food labels having to identify the food source of all major food allergens, for sesame becoming the ninth major food allergen under the Food Allergy Safety, Treatment, Education, and Research Act with labeling required from 1 January 2023, and for the advice to read the entire ingredient list every time a product is bought because ingredients can change at any time.