This Philly Cheesesteak Casserole is a baked twist on the classic cheesesteak sandwich, combining seasoned beef, sautéed onions and peppers, and melted cheese into one hearty, oven-baked dish. It delivers familiar flavors in a simple, family-friendly format that’s easy to prepare and perfect for busy weeknights.
With layers of savory beef, tender vegetables, and gooey cheese, this casserole is satisfying on its own or served alongside a simple salad. It’s a comforting, crowd-pleasing meal made with everyday ingredients.
Ingredients
1½ lbs ground beef (or thinly sliced beef)
1 tablespoon olive oil
1 medium onion, diced
1 green bell pepper, diced
1 red bell pepper, diced
2 cloves garlic, minced
1 teaspoon salt
½ teaspoon black pepper
1 teaspoon Worcestershire sauce
1 cup beef broth
1 tablespoon cornstarch (optional, for thickening)
2 cups shredded mozzarella or provolone cheese
½ cup shredded cheddar cheese (optional)
1 teaspoon dried parsley or Italian seasoning
InstructionsInstructions
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish and set aside.
Step 2: Cook the Beef
Heat olive oil in a large skillet over medium heat. Add the ground beef and cook until browned, breaking it apart as it cooks. Drain excess grease if needed.
Step 3: Sauté the Vegetables
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Add the diced onion, green pepper, red pepper, and garlic to the skillet. Cook for 5–7 minutes, stirring occasionally, until the vegetables are softened.
Season with salt, black pepper, and Worcestershire sauce.
Step 4: Add the Sauce
Pour in the beef broth. If you prefer a thicker casserole, stir the cornstarch into a small amount of cold water and add it to the skillet. Simmer for 2–3 minutes until slightly thickened.
Remove from heat.
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