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Philly Cheesesteak Casserole Recipe

4.8 from 54 reviews

This Philly Cheesesteak Casserole is a rich and comforting dish that captures the flavors of a classic Philly cheesesteak sandwich in a baked casserole form. Featuring tender sirloin steak, sautéed peppers and onions, and a creamy cheese sauce with cheddar and mozzarella, it’s perfect for a hearty family meal or game day feast.

Ingredients

Scale

Meat and Seasonings

  • 1 tablespoon butter
  • 2 pounds sirloin steak, sliced
  • 1/2 teaspoon salt
  • 1/4 teaspoon pepper

Vegetables

  • 2 large bell peppers, sliced
  • 1 large onion, chopped
  • 2 cloves garlic, minced

Dairy and Cheese

  • 1/2 cup cream cheese
  • 1/4 cup + 2 tablespoons half-and-half or cream
  • 1 cup cheddar cheese, divided
  • 1 cup mozzarella cheese, divided

Instructions

  1. Prepare the Steak: Heat the butter in a large skillet over medium-high heat. Add the sliced sirloin steak, season with salt and pepper, and cook until browned on all sides but still slightly pink inside. Remove the steak from the skillet and set aside.
  2. Sauté Vegetables: In the same skillet, add the sliced bell peppers, chopped onion, and minced garlic. Cook until the vegetables are softened and slightly caramelized, about 5-7 minutes.
  3. Create Cheese Sauce: Lower the heat to medium and add the cream cheese and half-and-half or cream to the vegetables. Stir continuously until the cream cheese is fully melted and combined, creating a creamy sauce.
  4. Combine and Layer: Return the cooked steak to the skillet and mix well with the creamy vegetable mixture. Transfer half of this mixture to a greased casserole dish. Sprinkle half of the cheddar and mozzarella cheeses over the layer. Add the remaining meat and vegetable mixture on top.
  5. Add Remaining Cheese and Bake: Top the casserole with the remaining cheddar and mozzarella cheeses. Preheat your oven to 350°F (175°C) and bake the casserole for 20-25 minutes, or until the cheese is melted, bubbly, and slightly golden.
  6. Serve: Remove the casserole from the oven and let it rest for a few minutes before serving. Enjoy this flavorful Philly Cheesesteak Casserole warm.

Notes

  • You can substitute sirloin with ribeye or flank steak for a richer flavor.
  • Use any combination of bell peppers (red, green, yellow) to add color and sweetness.
  • The casserole can be assembled ahead of time and refrigerated before baking.
  • For a lower-fat option, use reduced-fat cream cheese and milk instead of cream.
  • Leftovers can be stored in the refrigerator for up to 3 days and reheated in the oven.

Keywords: Philly cheesesteak, casserole, sirloin steak, cheese sauce, bell peppers, onions, comfort food