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Slow Cooked Steak Diane Casserole

Slow Cooked Steak Diane Casserole for Cozy Family Dinners

Experience the cozy comfort of Slow Cooked Steak Diane Casserole, perfect for family gatherings.
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Prep Time 20 minutes
Cook Time 8 hours
Total Time 8 hours 20 minutes
Servings: 6 servings
Course: Beef
Cuisine: American
Calories: 550
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 2 lbs Beef cubes (chuck roast) Use chuck roast for flavor and tenderness.
  • 2 tbsp Olive oil Sear the beef.
  • 1 medium Onion Prefer yellow onion for sweetness.
  • 2 cloves Garlic Fresh minced garlic.
  • 8 oz Mushrooms Button or cremini mushrooms.
  • 2 tbsp Dijon mustard Adds tang.
  • 1 tbsp Worcestershire sauce Adds complexity.
  • 2 cups Beef broth Low-sodium versions recommended.
  • to taste Salt
  • to taste Pepper
  • 1 cup Heavy cream Gives a creamy texture.
  • 1 tbsp Cornstarch Optional for thickening.

Equipment

  • Slow cooker
  • skillet
  • measuring cups
  • measuring spoons

Method
 

Step‑by‑Step Instructions
  1. In a large skillet, heat olive oil over medium-high heat. Sear the beef for 3-4 minutes per side until browned, then set aside.
  2. Reduce heat to medium and sauté chopped onions and minced garlic for 3-4 minutes until translucent.
  3. Add sliced mushrooms and cook for about 5 minutes, scraping bits from the bottom for added flavor.
  4. Stir in Dijon mustard and Worcestershire sauce, then pour in beef broth and season with salt and pepper. Simmer gently.
  5. Transfer sauce mixture to a slow cooker. Add seared beef, cover, and cook on low for 6-8 hours or high for 3-4 hours.
  6. 30 minutes before serving, stir in heavy cream. If too thin, mix cornstarch with water and add to thicken.
  7. Ladle over mashed potatoes or egg noodles, garnish with parsley, and serve hot.

Nutrition

Serving: 1bowlCalories: 550kcalCarbohydrates: 20gProtein: 40gFat: 30gSaturated Fat: 15gCholesterol: 150mgSodium: 700mgPotassium: 800mgFiber: 2gSugar: 5gVitamin A: 500IUVitamin C: 2mgCalcium: 50mgIron: 3mg

Notes

For best flavor, marinate beef overnight in Worcestershire sauce and mustard.

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