To create this delightful Cheesy Low Carb Philly Cheesesteak Casserole, follow these simple steps:

1. Preheat Oven: Begin by preheating your oven to 375°F (190°C).
2. Cook Steak: In a large skillet over medium heat, add olive oil. Once hot, cook the thinly sliced steak until browned, about 3-5 minutes. Remove the steak and set aside.
3. Sauté Vegetables: In the same skillet, add the onion and bell pepper. Sauté until softened, roughly 3-4 minutes. Add the minced garlic and cook for an additional minute, stirring frequently.
4. Mix Cream Cheese: In a separate bowl, combine the softened cream cheese with Worcestershire sauce, salt, black pepper, paprika, onion powder, and garlic powder. Mix well until smooth.
5. Combine Ingredients: Return the cooked steak to the skillet with the sautéed vegetables. Add the cream cheese mixture, stirring until the meat and veggies are well coated.
6. Transfer to Baking Dish: Pour the mixture into a greased 9×13-inch baking dish, smoothing it into an even layer.
7. Add Cheese: Sprinkle the shredded provolone cheese on top of the mixture, ensuring it’s evenly distributed.
8. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the cheese is golden and bubbly.
9. Cool and Serve: Remove the casserole from the oven and let it cool for about 5 minutes before serving.

These steps will guide you through making this incredible Cheesy Low Carb Philly Cheesesteak Casserole effortlessly.