🥩 Slow Cooker Beef Tips with Mushrooms, Mashed Potatoes & Green Beans

Slow Cooker Beef Tips with Mushrooms, Mashed Potatoes & Green Beans is a cozy American-style dinner made for busy weeknights and relaxed Sunday meals. Tender beef cooks slowly with mushrooms, onions, garlic, beef broth, and simple seasonings until the meat is fork-tender and the gravy is rich and savory.

Serve the beef and mushroom gravy over creamy mashed potatoes with buttery green beans on the side. The combination gives you tender protein, hearty potatoes, and a fresh vegetable in one satisfying plate.

This easy slow cooker dinner also works well for meal prep because the beef and gravy reheat beautifully the next day.

Why You’ll Love This Slow Cooker Beef Dinner

Easy preparation: Most of the cooking happens in the slow cooker.
Tender beef: Long, gentle cooking helps tougher cuts become soft and flavorful.
Rich gravy: Beef broth, Worcestershire sauce, garlic, onions, and mushrooms create a savory sauce.
Complete meal: Mashed potatoes and green beans make the dish filling and balanced.
Family-friendly: The mild seasoning works well for adults and children.
Meal-prep friendly: Leftover beef and gravy can be refrigerated or frozen for later.

Ingredients You’ll Need

For the Beef Tips and Mushroom Gravy

2 pounds beef stew meat or sirloin tips, cut into bite-size pieces
1 tablespoon olive oil for optional searing
1 small onion, sliced
8 ounces mushrooms, sliced
3 cloves garlic, minced
2 cups beef broth
2 tablespoons Worcestershire sauce
1 tablespoon soy sauce, optional
1 teaspoon dried thyme
1 teaspoon paprika
½ teaspoon black pepper
1 teaspoon salt, adjusted to taste
2 tablespoons cornstarch
2 tablespoons water

For the Mashed Potatoes

2 pounds Yukon Gold or Russet potatoes
4 tablespoons butter
½ cup warm milk or cream
Salt and black pepper to taste

For the Green Beans

12 ounces fresh green beans, trimmed
1 tablespoon butter
Salt and black pepper to taste

How to Make Slow Cooker Beef Tips

Step 1: Season the Beef

Pat the beef pieces dry with paper towels before seasoning. Sprinkle them evenly with salt, black pepper, and paprika.

For deeper flavor, heat olive oil in a large skillet and sear the beef for about 2–3 minutes per side. Searing is optional, but it adds a richer browned flavor to the finished gravy.

Step 2: Add the Vegetables

Place the sliced onions, mushrooms, and minced garlic in the bottom of your slow cooker. Spread them into an even layer so the vegetables cook with the beef juices.

Step 3: Add the Beef and Liquid

Place the seasoned beef over the vegetables. Pour in the beef broth, Worcestershire sauce, and optional soy sauce.

Sprinkle the dried thyme over the top. Avoid adding too much extra liquid because the mushrooms and beef will release moisture during cooking.

Step 4: Slow Cook Until Tender

Cover the slow cooker and cook until the beef is fork-tender.

LOW: Cook for 7–8 hours.
HIGH: Cook for 4–5 hours.

The exact cooking time can vary depending on the size of the beef pieces and your slow cooker. The beef is ready when it becomes tender enough to break apart easily with a fork.

Step 5: Thicken the Gravy

Combine the cornstarch and water in a small bowl and stir until smooth.

Add the slurry during the final 20–30 minutes of cooking. Stir gently and allow the sauce to thicken before serving.

If the gravy remains too thin, add a small amount of additional slurry. If it becomes too thick, stir in a splash of warm beef broth.

Step 6: Prepare the Mashed Potatoes

Peel and cube the potatoes into similar-sized pieces. Place them in a pot of salted water and bring to a boil.

Cook for about 15–20 minutes, or until the potatoes are fork-tender. Drain thoroughly, then mash with butter and warm milk or cream.

Season with salt and black pepper. Avoid overmixing because excessive stirring can make mashed potatoes gummy.

Step 7: Cook the Green Beans

Trim the green beans and steam or boil them for about 4–6 minutes. Cook until they are tender but still have a slight bite.

Drain well and toss with butter, salt, and black pepper. For brighter green beans, avoid overcooking them.

Step 8: Assemble and Serve

Spoon a generous portion of mashed potatoes onto each plate. Top with tender beef, mushrooms, onions, and plenty of gravy.

Serve the buttery green beans alongside the beef and potatoes. Add a little fresh parsley if you want a simple finishing touch.

Best Beef for This Recipe

Beef stew meat is a convenient choice because it is already cut into cooking-sized pieces. Chuck roast is another excellent option because its marbling helps it become tender during slow cooking.

Sirloin tips can also be used when you prefer a leaner cut. Cut the beef into similar-sized pieces so they cook evenly.

Avoid cutting the meat too small because smaller pieces can become dry during a long cooking time.

Tips for Tender Beef and Rich Gravy

Sear before slow cooking: Browning creates deeper flavor and improves the overall taste of the gravy.
Use similar-sized beef pieces: Even pieces cook at a more consistent rate.
Keep the lid closed: Opening the slow cooker repeatedly releases heat and can extend the cooking time.
Use low-sodium broth: This gives you better control over the salt level.
Add the slurry near the end: Early addition can reduce its thickening power during a long cook.
Use warm dairy: Warm milk or cream blends more smoothly into mashed potatoes.
Do not overcook green beans: Tender-crisp beans provide better texture beside the soft beef and potatoes.

Easy Variations

For a creamier gravy, stir in 2 tablespoons of sour cream after the beef has finished cooking. Add it gradually and avoid boiling the finished sauce.

Cremini mushrooms can replace standard white mushrooms when you want a deeper earthy flavor.

For extra vegetables, add sliced carrots to the slow cooker with the onions and mushrooms. You can also add celery for more savory flavor.

For a lower-sodium version, choose low-sodium beef broth and skip or reduce the soy sauce.

How to Store and Reheat

Place leftover beef and gravy in airtight containers and refrigerate for up to 4 days. Store mashed potatoes and green beans separately when possible.

Reheat the beef and gravy gently on the stovetop or in the microwave until heated through. Add a splash of broth if the gravy becomes too thick.

For freezing, freeze the beef and gravy separately from the mashed potatoes for better texture. Use the frozen beef within about 2 months for the best quality.

Frequently Asked Questions

Can I use frozen beef for slow cooker beef tips?

Thaw the beef in the refrigerator before cooking so it heats evenly and reaches a safe temperature more reliably.

Can I make this recipe without mushrooms?

Yes, simply leave out the mushrooms and add extra onions, carrots, or another vegetable you enjoy.

What is the best beef cut for this recipe?

Chuck roast, beef stew meat, and sirloin tips can all work well, with chuck and stew meat offering especially tender results.

Can I make the gravy thicker?

Yes, add a small amount of cornstarch slurry during the final 20–30 minutes and allow the sauce to thicken.

Can I prepare this meal ahead of time?

Yes, cook the beef and gravy ahead, refrigerate them, and reheat gently while preparing fresh mashed potatoes and green beans.

Can I freeze beef tips and gravy?

Yes, freeze the cooled beef and gravy in an airtight container for up to about 2 months for the best quality.

Can I make this recipe in an Instant Pot?

Yes, you can adapt the recipe for an Instant Pot by pressure cooking the beef and using a natural release before thickening the gravy.

What should I serve with beef tips?

Creamy mashed potatoes and green beans make a classic pairing, while roasted carrots, steamed broccoli, or dinner rolls are also good options.

Final Thoughts

This slow cooker beef dinner brings together tender meat, savory mushroom gravy, creamy potatoes, and buttery green beans without complicated preparation. Searing the beef adds extra flavor, while slow cooking gives the meat time to become tender.

For a comforting American-style family meal, serve the beef and gravy hot over mashed potatoes with green beans on the side. It is simple enough for a weeknight and hearty enough for a relaxed Sunday dinner.