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Philly Cheesesteak Casserole in a Slow Cooker — featured

Philly Cheesesteak Casserole in a Slow Cooker

This Crockpot Philly Cheesesteak Casserole combines tender beef, vibrant peppers, and gooey cheese for a hearty dinner, all cooked effortlessly in a slow cooker.
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Prep Time 25 minutes
Cook Time 5 hours
Total Time 5 hours 25 minutes
Servings: 8 servings
Course: Main Dish
Cuisine: American
Calories: 540
Ingredients Equipment Method

Ingredients
  

Main Ingredients
  • 900 g beef sirloin steak Thinly sliced into bite-sized strips
  • 1 large green bell pepper Sliced into thin strips
  • 1 large red bell pepper Sliced into thin strips
  • 1 large yellow onion Thinly sliced
  • 225 g mushrooms Sliced
  • 3 cloves garlic Minced
Seasonings
  • 15 ml olive oil
  • 240 ml beef broth Low sodium
  • 30 ml Worcestershire sauce
  • 15 ml soy sauce
  • 5 g Italian seasoning
  • 5 g onion powder
  • 5 g garlic powder
  • 5 g smoked paprika
  • 5 g salt
  • 2.5 g black pepper Freshly ground
Sauce and Cheese
  • 115 g cream cheese Softened and cut into cubes
  • 15 g cornstarch
  • 30 ml water Cold
  • 8 slices provolone cheese
  • 240 g mozzarella cheese Shredded
Garnish
  • 15 g fresh parsley Finely chopped

Equipment

  • Slow cooker Essential for cooking evenly and slowly over time.

Method
 

Preparation
  1. Place the thinly sliced beef sirloin on a clean cutting board and cut into evenly sized bite-sized strips.
  2. Heat olive oil in a skillet, then add beef in small batches and sear each batch for 1 to 2 minutes per side.
  3. Transfer the browned beef to the slow cooker and add vegetables on top.
  4. Combine the beef broth with sauces and seasonings, then pour over the beef and vegetables.
  5. Cover and cook on LOW for 4 to 5 hours.
  6. Add cream cheese during the final 30 minutes, followed by cornstarch mixture to thicken.
  7. Add provolone and mozzarella cheese, then cover to melt.
  8. Let rest for 5 minutes before serving with parsley garnish.