Creating the Low Carb Philly Cheesesteak Casserole is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook the Beef: In a large skillet, heat olive oil over medium heat. Add ground beef and cook until browned, breaking it apart as it cooks.
3. Add Vegetables: Stir in sliced onions, green bell pepper, red bell pepper, and minced garlic. Cook until the vegetables are softened, about 5 minutes.
4. Season the Mixture: Add Worcestershire sauce, Italian seasoning, salt, and pepper. Mix well and let it cook for another 2 minutes.
5. Prepare Cream Mixture: In a separate bowl, combine heavy cream and half of the shredded cheese. Stir until well mixed.
6. Combine Ingredients: Pour the cream mixture over the beef and vegetables in the skillet. Stir everything together until evenly combined.
7. Transfer to Baking Dish: Pour the entire mixture into a greased 9×13-inch baking dish.
8. Top with Cheese: Sprinkle the remaining shredded cheese evenly over the top of the casserole.
9. Bake: Place the baking dish in the preheated oven and bake for 20-25 minutes, or until the cheese is bubbly and golden brown.
10. Garnish and Serve: Once done, remove from the oven and let it sit for a few minutes. Garnish with fresh parsley before serving.

This step-by-step guide ensures that you create a mouthwatering Low Carb Philly Cheesesteak Casserole that your family will love.