Philly Cheesesteak Casserole transforms the classic sandwich into a comforting, oven-baked meal that brings together savory beef, sautéed peppers and onions, mushrooms, and melted cheese in one satisfying dish. Perfect for busy evenings or casual family gatherings, it offers the familiar flavors of a cheesesteak without the need for sandwiches or extra prep. The dish begins by browning ground beef or shaved steak in a skillet, then cooking onions, bell peppers, mushrooms, and garlic until tender. Seasoned with salt, pepper, smoked paprika, and a splash of Worcestershire sauce, the mixture creates a rich, flavorful base that’s transferred into a baking dish ready for its creamy topping.

To complete the casserole, softened cream cheese, mayonnaise, and eggs are whisked together to form a smooth, rich layer that’s poured over the meat and vegetables. A generous topping of shredded provolone and mozzarella cheese melts beautifully in the oven, creating a golden, bubbling crust after about 25 to 30 minutes of baking. Letting the dish rest briefly before serving helps the layers settle, making it easier to portion while enhancing the flavors. The casserole can be enjoyed on its own or paired with a crisp salad, toasted bread, or hoagie rolls for a more traditional touch. Easy to prepare and packed with hearty ingredients, this dish captures the comforting essence of a Philly cheesesteak in a warm, shareable meal that’s sure to become a favorite at the dinner table.