Creating the Low-Carb Philly Cheesesteak Casserole is both easy and satisfying. Follow these steps for a delicious result:

1. Preheat Oven: Preheat your oven to 350°F (175°C).

2. Cook the Meat: In a large skillet over medium heat, add a small amount of oil. Cook the ground beef until browned (or sauté steak strips until just cooked). Drain excess fat if necessary.

3. Add Vegetables: Add the diced onion, green bell pepper, red bell pepper, and minced garlic to the skillet. Sauté until vegetables are tender, approximately 5-7 minutes.

4. Season the Mixture: Stir in Worcestershire sauce, salt, black pepper, paprika, and Italian seasoning. Cook for an additional 2 minutes to blend flavors.

5. Prepare Sauce: Reduce heat to low, then add the heavy cream to the skillet. Stir until everything is well combined and heated through.

6. Transfer to Casserole Dish: Pour the meat and vegetable mixture into a greased 9×13 inch baking dish, spreading it evenly.

7. Add Cheese: Sprinkle the shredded provolone cheese evenly over the top of the meat mixture.

8. Bake: Place the dish in the preheated oven and bake for 25-30 minutes or until the cheese is melted and bubbly.

9. Cool Before Serving: Allow the casserole to cool slightly before serving, as it will be very hot.

These detailed steps guide you in crafting this incredible casserole effortlessly. Enjoy the enticing aromas that fill your kitchen while it bakes!