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Philly Cheesesteak Casserole Recipe

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4.8 from 53 reviews

This Philly Cheesesteak Casserole is a rich, comforting dish inspired by the classic Philly cheesesteak sandwich. It features tender sirloin steak, sautéed bell peppers and onions, and a creamy blend of cheeses, all baked together to create a hearty, flavorful casserole perfect for a family meal or casual gathering.

Ingredients

Scale

Meat and Vegetables

  • 1 tablespoon butter
  • 2 pounds sirloin steak, sliced
  • 1/2 teaspoon salt
  • 1/4 teaspoon pepper
  • 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 butter in a large skillet over medium-high heat. Add the sliced sirloin steak seasoned with salt and pepper. Cook the steak until browned and just cooked through, about 4-5 minutes. Remove from the skillet and set aside.
  2. Sauté Vegetables: In the same skillet, add the sliced bell peppers, chopped onion, and minced garlic. Cook over medium heat until the vegetables are softened and slightly caramelized, about 6-8 minutes.
  3. Make Cheese Sauce: Reduce the heat to low and stir in the cream cheese until melted and creamy. Gradually add the half-and-half or cream, stirring constantly until the mixture is smooth and heated through.
  4. Combine Ingredients: Return the cooked steak to the skillet with the sautéed vegetables and cheese sauce. Mix well to combine. Stir in half of the cheddar and mozzarella cheese until melted and fully incorporated into the mixture.
  5. Assemble the Casserole: Transfer the mixture to a greased casserole dish. Sprinkle the remaining cheddar and mozzarella cheese evenly on top.
  6. Bake: Preheat oven to 350°F (175°C). Bake the casserole for 20-25 minutes, or until the cheese on top is melted and bubbly with a golden crust.
  7. Serve: Remove from the oven and let the casserole rest for 5 minutes before serving. Enjoy warm as a hearty main dish.

Notes

  • For a spicier version, add sliced jalapeños or a dash of hot sauce to the sautéed vegetables.
  • Use other cheese blends such as provolone or pepper jack for different flavor profiles.
  • Leftovers can be refrigerated up to 3 days and reheated in the oven or microwave.
  • To reduce calories, substitute half-and-half with whole milk and use reduced-fat cheese.