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Philly Cheesesteak Casserole

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This Philly Cheesesteak Casserole is a comforting, low-carb twist on the classic sandwich, packed with tender beef, sautéed peppers and onions, creamy cheese sauce, and a gooey cheese topping—all baked to perfection in one dish.

  • Author: Emma
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 6 servings
  • Category: Dinner
  • Method: Baking
  • Cuisine: American

Ingredients

  • 1.5 lbs thinly sliced beef (ribeye or sirloin)
  • 2 bell peppers (green, red, or both), sliced
  • 1 medium onion, thinly sliced
  • 2 garlic cloves, minced
  • 4 oz cream cheese, softened
  • 1/2 cup beef broth
  • 68 slices provolone or 1.5 cups shredded mozzarella cheese
  • 2 tablespoons olive oil or butter
  • Salt and pepper, to taste
  • Optional: 1 tablespoon Worcestershire sauce

Instructions

  1. Preheat oven to 375°F (190°C) and lightly grease a baking dish.
  2. In a skillet over medium-high heat, sauté sliced peppers and onions in olive oil for 5–7 minutes until soft. Add garlic and cook 1 minute more. Transfer to baking dish.
  3. In the same skillet, cook sliced beef in more oil or butter until browned. Season with salt, pepper, and Worcestershire sauce if using.
  4. Add beef broth to the skillet, scraping brown bits, and stir in cream cheese until smooth and creamy.
  5. Spread the beef mixture over the peppers and onions in the casserole dish.
  6. Top with provolone slices or shredded mozzarella cheese.
  7. Bake for 15–20 minutes until cheese is melted, bubbly, and lightly golden.
  8. Let sit for a few minutes before serving to allow layers to set.

Notes

  • Swap beef for chicken or turkey for a lighter option.
  • Use ricotta or sour cream instead of cream cheese for variation.
  • Add mushrooms, banana peppers, or jalapeños for extra flavor.
  • Top with pepper jack for a spicy twist.
  • Prep ahead and refrigerate for next-day baking convenience.

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