Description
This Keto Low-Carb Philly Cheese Steak Casserole combines tender sirloin steak, sautéed peppers, mushrooms, and onions with a creamy mixture of cream cheese, eggs, and shredded parmesan. Topped with melted provolone cheese and baked until bubbly, this casserole is a delicious low-carb take on the classic Philly cheesesteak, perfect for a satisfying and wholesome meal.
Ingredients
Scale
Steak and Vegetables
- 1 ½ pounds Butcher Box sirloin steak sliced into thin strips
- 1 teaspoon Steak Seasoning (such as McCormick’s Montreal Steak Seasoning)
- Salt and pepper to taste
- 1 cup sliced green peppers
- 1 cup mushrooms, sliced
- 1 cup onion, chopped
- 2 garlic cloves, chopped
Creamy Mixture and Topping
- 2 oz cream cheese
- 1 teaspoon Worcestershire sauce
- 2 eggs
- ½ cup heavy whipping cream
- ½ cup shredded parmesan reggiano cheese
- 4–5 slices provolone cheese, sliced into small pieces
Instructions
- Preheat Oven: Preheat your oven to 350 degrees Fahrenheit to prepare for baking the casserole.
- Cook Steak: Add the thinly sliced sirloin steak to a skillet over medium-high heat. Season with steak seasoning, salt, and pepper. Cook the steak for 2-3 minutes, flipping to brown both sides until just cooked through.
- Sauté Vegetables: Add the green peppers, chopped onion, garlic, and mushrooms to the skillet with the steak. Cook until the vegetables are soft and the steak is no longer pink.
- Drain Excess Fat: Carefully drain any excess fat or liquid from the skillet to prevent the casserole from becoming soupy.
- Add Cream Cheese and Worcestershire Sauce: Stir in the Worcestershire sauce and cream cheese, cooking until the cream cheese is fully melted and incorporated with the meat and vegetables.
- Mix Egg Mixture: In a medium bowl, whisk together the eggs, shredded parmesan reggiano cheese, and heavy whipping cream until well combined.
- Assemble Casserole: Lightly spray an 8 x 11 inch (or 9 x 9) baking dish with cooking spray. Pour the steak and vegetable mixture into the dish and evenly drizzle the egg and cheese mixture over the top.
- Add Provolone Cheese: Distribute the small pieces of provolone cheese evenly over the casserole surface for a melty, cheesy topping.
- Bake: Place the casserole in the preheated oven and bake for 15-20 minutes, or until the cheese begins to bubble and the casserole is set. Total bake time is around 18 minutes.
- Cool and Serve: Remove the casserole from the oven and allow it to cool slightly before slicing and serving.
Notes
- Use parmesan reggiano cheese for its rich flavor, though regular parmesan can be substituted if necessary.
- Draining excess fat from the skillet before baking helps prevent a watery casserole bottom.
- This dish is best served warm and is great for meal prepping or low-carb dinners.
- The steak should be cooked just until no longer pink to keep it tender.
