Slow Cooker Mushroom Onion Beef

Savory Slow Cooker Mushroom Onion Beef is a hearty dish with little fuss and big taste.Because of winter store Titan, school has been cancelled again. The weather people were forecasting 2-4 inches of snow and utter chaos. Checked the backyard this morning – yeah, 1 inch of snow. At this rate, Megan will be going to school until July.

Ok, I’m done. Wasn’t even a rant, just a tiff. You know, kinda like winter storm Titan.

I’m so excited to share this super tasty recipe with you. Slow Cooker Mushroom Onion Beef is an accidental recipe. I didn’t have the ingredients for another recipe, so I got to play. OH EM GEE, I’m so glad I was out of those ingredients.

Slow Cooker Mushroom Onion Beef has great potential to become the base for many recipes.
– My veggie loving friends could add broccoli, carrots and any other veggies they enjoy.
– My spicy friends would enjoy Sriracha sauce to turn up the heat.
– Finally, yummy red potatoes sound terrific for my next go-round with this dish.

Slow Cooker Mushroom Onion Beef

Savory Slow Cooker Mushroom Onion Beef is a hearty dish with little fuss and big taste.
Course Main Course
Cuisine American
Prep Time 10 minutes
Cook Time 4 hours
Total Time 4 hours 10 minutes


  • 2 Pounds Stew Meat or 1" cubes of any steak
  • 1/2 Cup Margarine
  • 1 Tablespoon Beef Better Than Bouillon *See Notes for substitutes.
  • 1/2 teaspoon Garlic Powder
  • 1 Onion chopped or 2 Tablespoon Dried Minced Onions
  • 2 teaspoons Onion Powder
  • 1 Clove Garlic minced or 1/2 teaspoon Garlic Powder
  • 1/2 teaspoon Basil
  • 1/2 teaspoon Salt
  • 1/4 teaspoon Black Pepper
  • 1/4 teaspoon Turmeric
  • 1-8 oz. Can Sliced Mushrooms or 2 Cups Fresh Mushrooms sliced
  • 1/4 cup cornstarch
  • 1/4 cup cold water
  • Hot Cooked Egg Noodles or Rice


  1. Place the beef, mushrooms and onion in a 5-qt. slow cooker.
  2. In a microwave safe dish/cup melt margarine. Add bouillon to margarine; stir to dissolve. Add onion powder, garlic powder, basil, salt, pepper, turmeric to broth; mix.
  3. Pour margarine mixture over meat. Stir meat to coat; mix well.
  4. Cook for 4-6 hours on LOW setting. Stir once, halfway. If using HIGH temperature and meat appears to be getting done quickly, turn down to LOW.
  5. Combine cornstarch and water until smooth; stir into meat mixture. Cover and cook on high for 15 minutes or until thickened.
  6. Serve over egg noodles or rice.

Recipe Notes

* 1 Tablespoon beef bouillon granules or ground up bouillon cubes can be substituted for Better Than Bouillon.

Do not add water - stew meat will produce plenty of moisture.

Savory Slow Cooker Mushroom Onion Beef is a hearty dish with little fuss and big taste.



  1. Hi Stacy,
    Your Slow Cooker Mushroom Onion Beef looks delicious, we would just love it, especially on that yummy bed of noodles. This is pure comfort food. Thanks so much for sharing with Full Plate Thursday and come back soon!
    Miz Helen

  2. Oh I love another great recipe for the Slow Cooker,I never can resist one! This looks absolutely delicous! Thanks so much for sharing on The Yuck Stops Here this week! Hope to see you back next week, we’ll be starting the party on Tuesday evening at 6pm ET instead of Monday from now on! HUGS

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