Name: Philly Cheesesteak Casserole
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1 pound ground beef; 1 green bell pepper, sliced; 1 red bell pepper, sliced; 1 yellow onion, sliced; 2 cloves garlic, minced; 4 ounces cream cheese; 1 tablespoon Worcestershire sauce; 6 slices provolone cheese; 1 cup shredded mozzarella cheese; 3 large eggs; 1/3 cup heavy cream

Craving all the rich, meaty goodness of a Philly cheesesteak, but in a dish you can just pop into the oven and serve family-style? This Philly Cheesesteak Casserole transforms a sandwich-shop classic into a bubbling, cheesy bake that’s just as indulgent but far easier to make at home. Think tender ground beef, sweet sautéed peppers and onions, and layers of melty provolone and mozzarella cheese all packed into one irresistible casserole.

Perfect for busy weeknights or a comforting weekend dinner, this dish delivers bold flavor without the hassle. No sandwich assembly required, and no need for a grill. Just one skillet, one baking dish, and a hungry crowd ready to dig in.

Preparation Phase & Tools to Use

Before diving into this casserole dream, it’s important to gather the right tools that will make the process smooth and enjoyable:

Large Skillet: Essential for browning the ground beef and sautéing the onions and peppers. You want one big enough to cook everything evenly without crowding.
Mixing Bowl: Useful for combining your creamy base (typically eggs, cream, or cheese mixtures) that will bind the casserole.
Casserole Dish (9×13 inch): This is where the magic happens. Make sure it’s oven-safe and deep enough to layer all the ingredients.
Wooden Spoon or Silicone Spatula: For gently stirring ingredients while cooking and scraping every last bit into your casserole dish.
Sharp Knife & Cutting Board: Since you’ll be slicing bell peppers, onions, and possibly beef strips, a sharp blade will make prep faster and safer.

These basic kitchen tools are likely already in your kitchen, but using the right size and type makes a huge difference in texture, flavor, and ease of cleanup.

Ingredients for the Philly Cheesesteak Casserole

Ground Beef: The heart of the dish. Lean ground beef adds savory depth and richness.
Bell Peppers (Green and Red): These bring sweet crunch and vibrant color, echoing the classic sandwich profile.
Yellow Onion: When sautéed, it adds a touch of sweetness and balance to the savory meat.
Garlic: Enhances the overall flavor with a subtle punch.
Cream Cheese: Adds creaminess and helps bind the filling into a cohesive, indulgent mix.
Worcestershire Sauce: Adds umami complexity and a slight tang.
Provolone Cheese: Traditional to Philly cheesesteaks, it melts smoothly and adds that iconic flavor.
Mozzarella Cheese: For extra gooey, melty goodness on top.
Eggs: Whisked in to help hold everything together during baking.
Heavy Cream: Makes the egg mixture rich and luxurious.

How To Make the Philly Cheesesteak Casserole

Step 1: Brown the Beef and Sauté the Veggies

Heat a large skillet over medium-high heat. Add the ground beef, breaking it up as it cooks. Once browned, drain excess grease. Add in sliced onions and bell peppers, cooking until softened. Stir in minced garlic and cook for another minute.

Step 2: Make It Creamy

Reduce heat to low and stir in the cream cheese until melted and well combined. Add Worcestershire sauce and mix thoroughly. Remove from heat.

Step 3: Prepare the Binding Mixture

In a mixing bowl, whisk together the eggs and heavy cream. This mixture will give your casserole its structure and richness.

Step 4: Assemble the Casserole

Preheat your oven to 350°F (175°C). Transfer the beef and veggie mixture to a greased 9×13-inch casserole dish. Pour the egg and cream mixture evenly over the top. Layer with slices of provolone cheese, then sprinkle shredded mozzarella across the top.

Step 5: Bake to Perfection

Bake uncovered for 30-35 minutes, or until the cheese is bubbly and golden and the center is set. Let cool for 5-10 minutes before serving.

How to Serve and Store Your Philly Cheesesteak Casserole

This casserole is hearty enough to serve as a standalone dish, but you can always add a crisp green salad or roasted potatoes to round out the meal. For a lower-carb option, serve it alongside cauliflower rice or a simple cucumber salad.

Leftovers store beautifully. Simply cover and refrigerate for up to 4 days. For freezing, portion into airtight containers and freeze for up to 2 months. Reheat in the oven at 350°F or in the microwave until heated through.

Frequently Asked Questions

How can I make this recipe keto-friendly?

You’re in luck—this casserole is already low-carb! Just be sure to use full-fat cheeses and double-check the Worcestershire sauce for added sugars.

Can I use steak slices instead of ground beef?

Yes! Thinly sliced ribeye or sirloin makes it even more authentic. Just cook them briefly to avoid drying out.

Is this casserole spicy?

Not as written, but you can turn up the heat by adding crushed red pepper flakes or diced jalapeños.

What can I substitute for cream cheese?

Ricotta or a mixture of sour cream and shredded cheese can work, but it may slightly alter the texture.

Can I prep this in advance?

Absolutely. Assemble it the night before, cover, and refrigerate. Bake when ready to serve.

Want More Casserole Dinner Ideas?

If you’re loving the ease and comfort of casseroles, there are plenty more to explore. You might also like the Sloppy Joe Casserole, which brings all the nostalgia with none of the mess. Or dive into the spice-forward Taco Bake Casserole, layered with seasoned beef, cheese, and tortillas.

For a twist on Italian comfort, the Buffalo Chicken Lasagna packs heat and cheese into every bite. Or if you’re looking for a seafood spin, the Easy Seafood Casserole delivers creamy, ocean-inspired flavors.

Pin and Tell Me How Yours Turned Out

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If you make it, I’d love to hear how it turned out. Did you swap the ground beef for steak? Did you layer the cheese differently? Leave a comment below. I’m always curious how others bring it to life.

And if you’re looking for more weeknight magic, follow along on Pinterest at LadyPlate where I share new comfort food favorites daily.