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Savory Philly Cheesesteak Casserole Recipe Easy Homemade with Provolone and Peppers

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A comforting and easy-to-make casserole featuring thinly sliced roast beef, sautéed peppers and onions, and melty provolone cheese, perfect for busy weeknights or casual gatherings.

Ingredients

Scale
  • 1 lb (450g) thinly sliced roast beef or ribeye steak
  • 1 large onion, thinly sliced
  • 2 bell peppers (red and green), thinly sliced
  • 3 cloves garlic, minced
  • 2 cups (200g) shredded provolone cheese
  • 1 cup (240ml) whole milk or heavy cream
  • 3 large eggs
  • 1 tablespoon olive oil or butter
  • Salt and freshly ground black pepper, to taste
  • 1 teaspoon Worcestershire sauce (optional but recommended)
  • 1 teaspoon dried oregano or Italian seasoning
  • Optional: ½ cup sliced mushrooms

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. Heat 1 tablespoon olive oil or butter in a large skillet over medium heat. Add the sliced onions and bell peppers, cooking for about 5-7 minutes until softened and starting to caramelize.
  3. Add the minced garlic and optional mushrooms, cooking for an additional 2-3 minutes. Season with salt and pepper.
  4. Add the thinly sliced roast beef or ribeye to the skillet and stir just to warm through, about 2 minutes. Avoid overcooking.
  5. In a mixing bowl, whisk together 3 large eggs, 1 cup whole milk or heavy cream, Worcestershire sauce, oregano, salt, and pepper until blended and slightly frothy.
  6. Lightly grease a 9×13-inch baking dish. Spread half of the beef and vegetable mixture evenly in the dish.
  7. Sprinkle half of the shredded provolone cheese over the beef and veggies.
  8. Repeat with the remaining beef and veggies, then top with the remaining cheese.
  9. Pour the egg mixture evenly over the casserole, allowing it to seep into all areas.
  10. Bake uncovered for 30-35 minutes until the casserole puffs slightly and the cheese is golden and bubbly. A toothpick inserted near the center should come out mostly clean.
  11. Let the casserole rest for 5-10 minutes before serving to set.

Notes

Do not overcook the beef during sautéing to keep it tender. Use thinly sliced beef for best texture. Worcestershire sauce adds umami depth. For dairy-free, substitute provolone with vegan cheese and milk with coconut or almond milk. For gluten-free, verify Worcestershire sauce and seasonings. Optional mushrooms add earthiness. Let casserole rest before slicing for easier serving.

Nutrition

Keywords: Philly cheesesteak casserole, provolone cheese casserole, easy weeknight dinner, beef casserole, comfort food, cheesy casserole, peppers and onions casserole

Find it online: https://fizzlefork.com/savory-philly-cheesesteak-casserole-recipe-easy-homemade-with-provolone-and-peppers/