Steak and Mushroom Slow Cooker Soup combines round beef steak with mushrooms and a flavorful broth. This recipe creates a quick-to-assemble soup you can put in a slow cooker and forget about until dinner time.

Is your freezer a black hole?
Recently, a package of round steak was found hanging out at the bottom of my freezer. It was still safe to eat but had a little bit of freezer burn. Just slightly past its prime. Evidently, it fell down the black hole in my freezer.
Round steak is not particularly good for a walk-in-the-door-and-eat-10-minutes later kind of menu. It’s more tender when cooked with moisture.
Recipe Inspiration
Consequently, I started thinking about soup in a slow cooker. The result is this tasty recipe for Steak and Mushroom Slow Cooker Soup. The recipe is my own but I was
The original idea originated with the prime rib soup at Harrigan’s restaurant (sadly, long gone in our area). It used to be one of my favorites on their menu along with New Orleans potatoes and Cheesy Yeast Rolls.
Notice I don’t use prime rib in this recipe because I don’t normally have such elegant leftovers. But round steak is very tasty, especially when cooked in a slow cooker. Prime rib couldn’t stand cooking all day anyway.
More Recipes for Your Consideration
Steakhouse Rolls--Another Bread Machine Recipe
Steakhouse Rolls are like rolls you might be served at a steakhouse. Directions for mixing and kneading in a bread machine are included.
Round Steak and Sausage Pinwheels
Round steak rolled up with sausage inside--fancy enough for any occasion
Leftover Steak Soup
Use leftover steak or beef roast to make a delicious soup full of mushrooms and seasonings. Sour cream stirred in at the end creates stroganoff-like flavors.
Hearty Beef and Cabbage Stew Recipe
A beef-broth based soup recipe with beef stew meat, ham, bacon, carrots, cabbage, and apples
If you enjoyed this recipe, please give it a five-star 🤩 rating inside the recipe card below. No comment required. Thank you.
Hope to see you again soon!
Paula
p.s. Questions? Email me: paula at saladinajar.com.
Slow Cooker Steak and Mushroom Soup: A Busy Day Lifesaver

Beef and mushrooms dominate this hearty and filling soup.
Ingredients
- 2 slices bacon
- 1-2 pounds round steak, cut in 1-inch cubes
- 1 cup frozen chopped onions
- 8 ounces fresh mushrooms, sliced
- 5 cups water
- 1 tablespoon beef bouillon concentrate
- 1 tablespoon Kitchen Bouquet
- 1 teaspoon soy sauce
- 1 bay leaf
- Freshly ground black pepper
- 1 cup plain Greek yogurt or sour cream
Instructions
- Fry bacon. Remove from pan, crumble and place in crock pot.
- Saute steak in remaining bacon grease over high heat until browned. Do this in small batches so skillet doesn't cool down. Place browned steak in crock pot.
- Saute onions and mushrooms in pan. Add to crock pot.
- Add water, bouillon, Kitchen Bouquet, soy sauce, bay leaf and black pepper to crock pot and stir.
- Cook on LOW for 8-10 hours.
- Remove about 1 cup broth from soup and whisk yogurt or sour cream into it unto smooth. Add back to crock pot and stir. Remove bay leaf before serving.
Recommended Products
As an Amazon Associate, I earn from qualifying purchases. But don't worry. This doesn't change the price you pay.
Nutrition Information:
Yield:
6Serving Size:
1Amount Per Serving: Calories: 383Total Fat: 16gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 143mgSodium: 459mgCarbohydrates: 8gFiber: 1gSugar: 4gProtein: 53g
Rach
Thursday 6th of September 2012
Another delicious recipe!
Paula
Thursday 6th of September 2012
Thanks Rach. You're the best!
amber
Friday 18th of November 2011
I'm with Emily.... What is kitchen bouquet? B/c this recipe sounds like my fam would love it!!
Paula
Friday 18th of November 2011
Amber, it is a dark brown seasoning sauce. You can read about here. http://en.wikipedia.org/wiki/Kitchen_Bouquet I use it to add deeper and fuller flavor and color.
danielle
Tuesday 11th of October 2011
I made this last night and the greek yogurt curdled when it hit the full soup, even though I whisked it well before putting it in. Now it looks like there's cottage cheese sitting at the bottom of my bowl. How do I fix this next time?
Paula
Tuesday 11th of October 2011
Danielle, Oh dear, that would not look appetizing. I didn't have that problem but here is what I suggest. First, be sure soup is not boiling. Then pour a tiny bit of the hot soup broth into the yogurt and whisk well. Then add a little more broth and continue whisking. Repeat until yogurt is very then and hot, then add to soup. Don't cook soup after you have added the yogurt.
Another option would be to serve soup without it and the add a dollop of Greek yogurt on top and let people stir it in as they eat. Doubt if you can pull that off with kids. :-)
Yudith @ Blissfully Delicious
Sunday 9th of October 2011
Oh wow, this looks great! I'm always looking for a new delicious slow-cooker dish, thanks for sharing :)
Jennifer
Thursday 29th of September 2011
It's in my crock pot right now and it smells so good! I didn't read the directions closely and I didn't saute my onions first. Oh well, I'm sure it will be delicious!