Crock Pot London Broil Steak and Mushrooms

Steak with creamy mushrooms

Eugene Mymrin / Getty Images

Prep: 10 mins
Cook: 4 hrs
Total: 4 hrs 10 mins
Servings: 5 to 6 servings
Nutrition Facts (per serving)
436 Calories
24g Fat
17g Carbs
37g Protein
Show Full Nutrition Label Hide Full Nutrition Label
Nutrition Facts
Servings: 5 to 6
Amount per serving
Calories 436
% Daily Value*
Total Fat 24g 31%
Saturated Fat 9g 45%
Cholesterol 134mg 45%
Sodium 1010mg 44%
Total Carbohydrate 17g 6%
Dietary Fiber 2g 6%
Total Sugars 5g
Protein 37g
Vitamin C 3mg 14%
Calcium 76mg 6%
Iron 4mg 21%
Potassium 645mg 14%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

The whole family will be happy with this flavorful crock pot London broil steak entrée. The steak is slow-cooked with a mixture of two kinds of condensed soup and dry onion soup mix, making it an effortless dish to put together. It's the perfect dish to fix for a cold fall or winter evening. Just throw everything together in the crock pot, press the start button, and go about your day. Run errands, do some work, play with the kids, or simply kick back and relax.

The recipe calls for a round steak or London broil, which are lean cuts with good flavor. Another good choice for this recipe is the 7-bone steak or chuck steak. It's a fattier cut, but it becomes very tender in the slow cooker. If you are looking for a melt-in-your-mouth steak, choose a chuck steak and add an hour or two to the cooking time.

You can make the steak and sauce a complete meal by adding some vegetables to cook along with the beef. Add a cup or two of baby carrots and sliced celery to the pot, or add a few potatoes, and cut into 2-inch chunks. Instead of tomato soup, add an extra can of cream of mushroom soup or golden mushroom soup.

Serve the sliced steak with its sauce over boiled or mashed potatoes, noodles, or rice. Add steamed green beans, broccoli, or your family's favorite vegetables for a satisfying family dinner.


  • 3 tablespoons all-purpose flour

  • 1/4 teaspoon freshly ground black pepper

  • 1/2 teaspoon sweet paprika

  • 1 1/2 pounds London broil, or round steak

  • 1 (6-ounce) jar mushrooms, drained

  • 1 (10 3/4-ounce) can cream of mushroom soup

  • 1 (10 3/4-ounce) can tomato soup

  • 1 (1-ounce) packet dry onion soup mix, such as Lipton Recipe Secrets

Steps to Make It

  1. Gather the ingredients.

  2. In a small bowl, combine the flour, ground black pepper, and paprika.

  3. Rub the steak on all sides with the mixture.

  4. Place the steak in the crock pot.

  5. In a bowl, combine the drained mushrooms, cream of mushroom soup, tomato soup, and onion soup mix and mix well.

  6. Pour the mixture over the meat.

  7. Cover the pot and cook on low for about 6 to 7 hours, or cook on high for about 3 1/2 hours.

  8. Slice the steak thinly for serving. 

Recipe Variations

  • Instead of London broil, use a 7-bone steak or a chuck steak.
  • Add some veggies and potatoes: 1 to 2 cups of baby carrots and sliced celery, 2 to 3 potatoes cut into 2-inch chunks. Russet potatoes work well.
  • Substitute golden mushroom soup or another can of mushroom soup in place of the tomato soup.


  • While the recipe doesn't call for it, browning the beef can greatly improve the flavor, color, and texture of the dish. If you have time, season the beef and then brown it in a skillet over medium-high heat in about 1 1/2 tablespoons of vegetable oil.
  • If the sauce becomes watery, strain the liquids and bring them to a boil in a saucepan on the stovetop. Reduce the heat to medium and cook until the liquids have reduced and the flavors are concentrated. 
  • Leftovers can be reheated and eaten as is, or cut the steak into chunks, reheat and use on sandwiches or over cooked egg noodles.

How to Store

  • Any leftovers can be kept in the fridge in an airtight container and used within three to four days.