Creating this scrumptious Low Carb Philly Cheesesteak Casserole is simple when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Cook the Beef: In a large skillet over medium heat, add the olive oil. Once hot, add the ground beef (or sliced steak) and cook until browned. Drain any excess fat.
3. Sauté the Vegetables: Add the sliced onion, bell pepper, and minced garlic to the skillet. Sauté until the vegetables are tender, about 5-7 minutes.
4. Season the Mixture: Stir in the Worcestershire sauce, Italian seasoning, salt, and pepper. Mix well to combine.
5. Prepare the Cream Mixture: In a separate bowl, mix the heavy cream with half of the provolone and mozzarella cheese. Stir until well combined.
6. Combine Ingredients: Pour the cream mixture over the beef and vegetable mixture in the skillet. Stir to combine everything evenly.
7. Transfer to Baking Dish: Pour the entire mixture into a greased 9×13-inch baking dish, spreading it evenly.
8. Top with Cheese: Sprinkle the remaining provolone and mozzarella cheese on top of the casserole.
9. Bake: Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the cheese is bubbly and golden brown.
10. Garnish and Serve: Remove from the oven, let cool for a few minutes, and garnish with fresh parsley if desired.

Following these steps will ensure you create a fantastic Low Carb Philly Cheesesteak Casserole that’s sure to impress!