Slow Cooker Beef and Mushroom Casserole

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Put a healthy, gourmet twist on a classic favorite.

After experimenting in the kitchen with new dishes, trendy ingredients, and innovative cooking methods, a comforting, traditional slow cooker beef dish can feel downright refreshing! There are thousands of versions of beef and mushroom casserole dishes, but not many of them combine distinctive flavor with clean, healthy ingredients, and easy preparation. Our slow cooker casserole recipe hits all three of those marks.

We’ve added a sophisticated twist with a cup of red wine. The alcohol will evaporate after you cook the wine in a saucepan, so you’ll be adding nothing but flavor, tannins, and antioxidants to your slow cooker. Browning your beef beforehand lends it a depth of flavor that combines well with the wine, and integrates perfectly with the rest of your ingredients.

Toast your mushrooms with the onions for an earthy, flavorful combo that complements the beef and brings out the best flavors in each ingredient. After preparing your beef and veggies, you can combine them with the rest of your ingredients in the slow cooker, and then go about your day while your dinner simmers away. When you lift that lid, you and your loved ones will be treated to a very tasty slow cooker beef casserole.

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Slow Cooker Beef and Mushroom Casserole

This nutritious and flavorful Beef and Mushroom Casserole is slow-cooked to the perfect tenderness and will be the highlight of your week.
Yield 4 people
Serving Size 0.25 of recipe
Course Dinner
Cuisine Universal

Ingredients

  • 1 pound beef cubes
  • 1 teaspoon salt separated
  • 1 teaspoon pepper more if desired
  • 1 cup red wine optional vegetable broth
  • 1 onion medium, coarsely chopped
  • 8 ounces mushrooms
  • 1 carrot big, peeled and sliced
  • 1/2 cup celery coarsely chopped
  • 2 thyme sprigs fresh
  • 2 bay leaves fresh, torn
  • 3 tablespoons tomato paste
  • 2 cups beef broth

Instructions

  • Rub the beef with 1/2 teaspoon salt and pepper then brown them in a saucepan with extra virgin olive oil over medium heat. Cook by batches if necessary so that you don't overcrowd the saucepan.
  • Pour the red wine in the saucepan and cook for about 8 minutes or until the alcohol has evaporated.
  • Transfer the beef and the sauce in the slow cooker.
  • In the same saucepan with new extra virgin olive oil, over medium heat, sautè the onions then the mushrooms, for about 5 minutes, until the mushrooms are slightly golden and have released their water and it has evaporated.
  • Add mushrooms and onions, carrots, celery, thyme, bay leaves, tomato paste, broth, and the remaining salt and pepper to the slow cooker.
  • Set on high for 6 hours.

Nutrition Information

Serving: 0.25of recipe | Calories: 373kcal | Carbohydrates: 37g | Protein: 24g | Fat: 10g | Saturated Fat: 5g | Cholesterol: 11mg | Sodium: 155mg | Fiber: 2g | Sugar: 23g |
SmartPoints (Freestyle): 13
Keywords Slow Cooker

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You will love our other Beef Slow Cooker recipes. Check them out:

Slow Cooker Everything Beef

Slow Cooker Beef and Farro

Slow Cooker Beef Curry

Slow Cooker Balsamic Beef

Slow Cooker Beef Stew with Chickpeas

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Rowena Dumlao-Giardina

Rowena is a recipe developer and food & travel writer/photographer from Italy with Asian roots. Creating healthy dishes in her own kitchen is priority. She believes there is nothing more satisfying than knowing that her family is eating natural & nutritious meals.

More by Rowena

1 Comment

  1. This was very tasty and smelled amazing. For me, it was done on high in 4 hours. But I prefer a more al dente carrot. I’ll definitely be adding this to my list of favorites.

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