01 -
Preheat your oven to 375°F (190°C). Thinly slice 1 large yellow onion and 2 large bell peppers (1 green, 1 red). Mince 3 cloves garlic. This initial prep sets the stage for your delicious Low Carb Philly Cheesesteak Casserole - Keto Dinner.
02 -
Heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 1/2 lbs thinly sliced sirloin or ribeye steak. Cook quickly until browned, about 2-3 minutes. Season with a pinch of 1 tsp salt and 1/2 tsp black pepper. Remove steak and set aside.
03 -
In the same skillet, add the sliced 1 large yellow onion and 2 large bell peppers. Cook until softened, about 5-7 minutes. Stir in the 3 cloves minced garlic and cook for another minute until fragrant. Return the seared steak to the skillet with the vegetables.
04 -
In a medium bowl, whisk together 8 oz softened cream cheese, 1/2 cup heavy cream, and 1/2 cup low-sodium beef broth until smooth. Stir in 1 tbsp Worcestershire sauce, 1 tsp garlic powder, 1 tsp onion powder, 1 tsp salt, and 1/2 tsp black pepper.
05 -
Pour the creamy sauce over the steak and vegetable mixture in the skillet, stirring to coat everything evenly. Transfer this entire mixture to a 9x13 inch baking dish. This forms the hearty foundation for your Low Carb Philly Cheesesteak Casserole - Keto Dinner.
06 -
Arrange 8 oz sliced provolone cheese evenly over the steak and vegetable mixture. Then, sprinkle 1 cup shredded mozzarella cheese over the provolone. This cheesy topping is crucial for the authentic Philly flavor of this Low Carb Philly Cheesesteak Casserole - Keto Dinner.
07 -
Bake for 20-25 minutes, or until the casserole is bubbly around the edges and the cheese is melted and lightly golden. Let the Low Carb Philly Cheesesteak Casserole - Keto Dinner rest for 5 minutes before serving to allow the sauce to set.