Philly Cheesesteak Casserole

If you love the bold, savory flavors of a classic Philly cheesesteak but want something easier to serve for a crowd, Philly Cheesesteak Casserole is the perfect solution. This baked dish delivers everything you expect—tender beef, sautéed peppers and onions, and plenty of melted cheese—without the need for rolls or individual sandwiches.

Warm, hearty, and incredibly satisfying, this casserole is ideal for weeknight dinners, potlucks, or make-ahead meals. It’s a great low-effort way to enjoy a comfort-food favorite in a form that’s simple to prepare and easy to customize.

Why You’ll Love This Recipe

All the flavor of a Philly cheesesteak in one dish
Easy to make ahead and reheat
Family-friendly and filling
Perfect for busy weeknights
Naturally low-carb if served without bread

Ingredients (Serves 4–6)

1 tablespoon olive oil
1 medium onion, thinly sliced
1 green bell pepper, thinly sliced
1 red bell pepper, thinly sliced
500 g beef steak (sirloin, ribeye, or flank), thinly sliced
2 cloves garlic, minced
1 teaspoon Worcestershire sauce
½ teaspoon salt
½ teaspoon black pepper
½ teaspoon smoked paprika (optional)
200 g cream cheese, softened
½ cup beef stock
1 cup grated mozzarella cheese
1 cup grated provolone or cheddar cheese
Fresh parsley, chopped (optional, for garnish)

Instructions

1. Preheat the Oven

Preheat your oven to 180°C (350°F). Lightly grease a medium baking dish and set aside.

2. Cook the Vegetables

Heat the olive oil in a large frying pan over medium heat. Add the sliced onion and bell peppers and cook for 6–8 minutes, stirring occasionally, until softened and lightly golden.

Add the garlic and cook for another 30 seconds until fragrant. Transfer the vegetables to a plate and set aside.

3. Cook the Beef

Using the same pan, increase the heat slightly and add the sliced beef. Cook for 3–4 minutes, stirring often, until just cooked through.

Season with salt, black pepper, smoked paprika (if using), and Worcestershire sauce. Remove from heat.

4. Make the Creamy Base

In a bowl, mix the softened cream cheese with the beef stock until smooth and pourable. This mixture adds richness and binds the casserole together.

5. Assemble the Casserole

Spread the cooked beef evenly in the prepared baking dish. Top with the sautéed peppers and onions.

Pour the cream cheese mixture over the top, spreading gently to coat everything evenly.

Sprinkle with mozzarella and provolone (or cheddar) cheese.

6. Bake

Bake uncovered for 25–30 minutes, or until the cheese is melted, bubbly, and lightly golden on top.

Remove from the oven and allow the casserole to rest for 5–10 minutes before serving.

Serving Suggestions

Philly Cheesesteak Casserole is incredibly versatile. Serve it:

On its own for a low-carb meal
With toasted hoagie rolls or crusty bread
Over mashed potatoes or rice
Alongside a simple green salad

For extra authenticity, serve with pickles or roasted potato wedges on the side.

Tips for Best Results

Slice beef thinly: This ensures quick cooking and tender texture.
Don’t overcook the meat: It will continue cooking in the oven.
Use provolone if possible: It delivers the most classic cheesesteak flavor.
Let it rest: This helps the casserole set and makes serving easier.

Variations

Mushroom lovers: Add sliced mushrooms with the peppers and onions.
Spicy version: Add sliced jalapeños or a pinch of chili flakes.
Extra cheesy: Stir additional cheese directly into the cream cheese mixture.
Keto-friendly: Keep as is and serve with a side of roasted vegetables.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat in the oven at 160°C (325°F) or in the microwave until warmed through.
Not ideal for freezing due to the cream cheese base.

Final Thoughts

Philly Cheesesteak Casserole is everything you love about the iconic sandwich—savory beef, sweet peppers, and gooey cheese—transformed into a cozy, shareable dish. It’s simple, comforting, and guaranteed to become a repeat favorite at the dinner table.