Philly Cheesesteak Casserole with Gooey Melted Cheese Tips, FAQ & printable recipe

Tips for success

If you prefer a bit of heat, consider adding a dash of red pepper flakes or finely diced jalapeños to the beef mixture while sautéing. This adds a subtle kick that complements the richness of the mozzarella cheese perfectly. Be sure to incorporate these additions early in the cooking process so the flavors have enough time to distribute evenly throughout the meat and peppers.

For a deeper flavor, you can deglaze the skillet with a splash of beef broth or even a small amount of balsamic vinegar after browning the beef.

This helps lift the browned bits from the bottom of the pan, adding complexity to the final dish. Simply scrape the bottom of the pan with a spatula while the liquid simmers, ensuring all that concentrated flavor is captured in your filling.

Variations

• Mushroom Philly Casserole: Add 8 ounces of sliced button mushrooms to the skillet when sautéing the peppers. The mushrooms add an earthy depth and extra texture that pairs perfectly with the beef and melted cheese.
• Onion-Loaded Casserole: Sauté two thinly sliced yellow onions along with the peppers until they are caramelized and golden brown. This adds a sweet, savory element that mimics the classic cheesesteak sandwich style.

Storage and make-ahead

Fridge

Store in an airtight container for up to 3 days.

Freezer

Store in a freezer-safe container for up to 2 months.

Reheat

Reheat in a preheated oven at 350°F (175°C) until warmed through and the cheese is bubbly.

Allow any leftovers to cool to room temperature for no more than two hours before placing them in an airtight container. Keep the container in the refrigerator to maintain freshness.

When stored properly, the casserole remains flavorful and safe to eat for up to three days. Ensure the container is sealed tightly to prevent the cheese from absorbing other odors in the refrigerator.

You can prepare the beef and pepper mixture up to 24 hours in advance. Store the cooled mixture in the refrigerator in an airtight container.

When ready to serve, transfer the mixture to your baking dish, top with the fresh shredded mozzarella, and bake as directed. You may need to add an extra 5 minutes to the baking time if the meat mixture is cold when it goes into the oven.

Serving ideas

Serve this casserole hot directly from the baking dish for the best experience. The combination of the crispy cheese edges and the tender, savory beef is best enjoyed immediately after the resting period. It pairs beautifully with a side of toasted garlic bread or a crisp green salad to balance the richness of the dish, creating a complete and satisfying meal for any occasion.

For an elegant presentation, use a clean serving spoon to portion the casserole into bowls or onto plates, making sure each serving includes a generous amount of the browned cheese topping.

You can garnish each portion with an extra sprinkle of fresh parsley or a dash of black pepper. This dish is hearty enough to be the main event at any gathering, providing warmth and comfort in every bite.

Frequently asked questions

Recipe card

Philly Cheesesteak Casserole with Gooey Melted Cheese

Prep 15 minCook 25 minRest 5 minTotal 45 minServes 6

Ingredients

• 2 lb ground beef
• 2 large red bell peppers, diced
• 3 cups shredded mozzarella cheese
• fresh parsley, chopped, for serving

Instructions

1. Heat a large skillet over medium-high heat. Add the ground beef and cook until browned and fully cooked through, ensuring the internal temperature reaches 160°F (71°C). Drain any excess fat. Add the diced red bell peppers to the skillet and sauté until they are tender and fragrant.
2. Transfer the cooked beef and pepper mixture into a 9x13 inch baking dish. Spread the mixture evenly across the bottom of the dish to create a uniform base for the cheese layer.
3. Top the beef mixture with the shredded mozzarella cheese. Place the dish in a preheated oven at 400°F (200°C) and bake until the cheese is melted, bubbling, and golden brown on top. Remove from the oven, let it rest for 5 minutes, garnish with fresh parsley, and serve.

Contains: milk

Estimated nutrition per serving

Calories

520

Protein

38 g

Carbohydrates

8 g

Fat

36 g

Fiber

1.5 g

Sugar

3 g

Sodium

450 mg

Automatic estimate from the ingredient list, not laboratory-verified.