Mushroom Slow Cooker Roast Beef


This is tender, fall-off-the-bone roast beef with mushrooms. It's perfect as-is. Shred the leftovers for cheese steak sandwiches.

Prep Time:
5 mins
Cook Time:
9 hrs
Total Time:
9 hrs 5 mins
8 servings


  • 1 pound sliced fresh mushrooms

  • 1 (4 pound) standing beef rib roast

  • 1 (1.25 ounce) envelope onion soup mix

  • 1 (12 fluid ounce) bottle beer

  • ground black pepper


  1. Place the mushrooms in the bottom of a slow cooker; set the roast atop the mushrooms; sprinkle the onion soup mix over the beef and pour the beer over everything; season with black pepper. Set slow cooker to LOW; cook 9 to 10 hours until the meat is easily pulled apart with a fork.

Nutrition Facts (per serving)

388 Calories
28g Fat
6g Carbs
24g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 388
% Daily Value *
Total Fat 28g 36%
Saturated Fat 11g 56%
Cholesterol 83mg 28%
Sodium 453mg 20%
Total Carbohydrate 6g 2%
Dietary Fiber 1g 3%
Total Sugars 1g
Protein 24g
Vitamin C 2mg 9%
Calcium 26mg 2%
Iron 3mg 16%
Potassium 512mg 11%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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