
Philly Cheesesteak Casserole: All the Bold Flavor, Baked Into One Comforting Dish
The Philly Cheesesteak Casserole takes everything people love about the iconic Philadelphia sandwich—savory beef, caramelized onions, tender peppers, and gooey melted cheese—and transforms it into a hearty, oven-baked meal. This casserole is perfect for busy weeknights, family dinners, or potlucks, offering the same rich, beefy flavor without the need for rolls or a griddle. Easy to prepare and incredibly satisfying, it’s a modern comfort-food classic.
What Makes This Casserole Special?
Unlike the traditional sandwich, this casserole layers all the ingredients together so every bite delivers a perfect balance of meat, vegetables, and cheese. Baking everything in one dish allows the flavors to meld beautifully while keeping the texture juicy and indulgent. It’s also highly customizable, making it easy to adapt to different tastes or dietary needs.
Ingredients You’ll Need
- Thinly sliced beef (sirloin, ribeye, or shaved steak)
- Onion, thinly sliced
- Green bell pepper, thinly sliced
- Mushrooms (optional but recommended), sliced
- Garlic, minced
- Olive oil or butter
- Cream cheese (softened)
- Beef broth or heavy cream
- Provolone cheese, shredded or sliced
- Mozzarella cheese (optional for extra meltiness)
- Salt and black pepper
- Worcestershire sauce
- Paprika or steak seasoning (optional)
Step-by-Step Method
Step 1: Prepare the Oven and Baking Dish
Preheat your oven to 375°F (190°C). Lightly grease a medium-sized casserole dish to prevent sticking and make cleanup easier.
Step 2: Sauté the Vegetables
Heat olive oil or butter in a large skillet over medium heat. Add the sliced onions and cook until soft and lightly caramelized. Stir in the bell peppers and mushrooms, cooking until tender. Add minced garlic and cook briefly until fragrant. Remove the vegetables from the skillet and set aside.









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