Philly Cheesesteak Casserole

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Philly Cheesesteak Casserole is a bubbly, cheesy, oven-baked dream inspired by the flavors of the iconic sandwich. Tender strips of beef, sautéed bell peppers, mushrooms, and onions are tucked into a creamy, savory base and crowned with a golden, broiled cheese crust. It’s comfort food with bold personality, and it turns a classic handheld into a hearty, fork-and-knife meal.

This casserole is perfect for weeknight dinners, game-day spreads, or cozy weekends at home. It comes together with just a bit of chopping and stirring but rewards you with big flavor and melty satisfaction in every bite. No bread required, but if you wanted to scoop it up with a crusty roll, we wouldn’t blame you.

What Kind of Beef Should I Use for Philly Cheesesteak Casserole?

Ribeye is the traditional choice for Philly cheesesteak thanks to its marbling and tenderness. But for a casserole, you can get great results with sirloin, flank steak, or even shaved beef from the deli. The key is to slice it thinly against the grain so it stays tender during baking. If you’re in a pinch, ground beef is also a solid option.

Ingredients for the Philly Cheesesteak Casserole

Beef – Choose ribeye, sirloin, or shaved beef for that authentic flavor. It’s the hearty backbone of the dish.

Bell Peppers – Green and red bell peppers bring color, sweetness, and classic cheesesteak flavor.

Mushrooms – Add depth and savory umami that complements the beef perfectly.

Onions – Caramelized onions infuse the casserole with sweet and rich flavor.

Cream Cheese – For a luscious, creamy base that ties everything together.

Provolone and Mozzarella Cheese – Provolone brings the classic cheesesteak meltiness, while mozzarella adds gooey stretch.

Garlic and Worcestershire Sauce – These give the casserole bold, beefy notes that make it irresistible.

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How To Make the Philly Cheesesteak Casserole

Step 1: Prepare the Veggies

Slice bell peppers, onions, and mushrooms. Sauté them in a skillet over medium heat with a bit of olive oil until soft and golden. Set aside.

Step 2: Cook the Beef

In the same skillet, cook your thinly sliced beef just until browned. Season with salt, pepper, garlic, and a splash of Worcestershire sauce. Avoid overcooking, as it will finish in the oven.

Step 3: Make the Creamy Base

Stir in softened cream cheese with the cooked beef and vegetables. Let it melt and coat everything in creamy goodness. Adjust seasoning to taste.

Step 4: Layer in a Casserole Dish

Transfer the beef and veggie mix into a greased 9×13-inch baking dish. Top with slices of provolone and sprinkle shredded mozzarella on top.

Step 5: Bake and Broil

Bake at 375°F (190°C) for about 15-20 minutes until bubbly. For a golden crust, broil for an extra 2-3 minutes at the end.

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How to Serve and Store Philly Cheesesteak Casserole

Serve this casserole hot out of the oven, garnished with chopped parsley or green onions for a fresh finish. It’s rich and satisfying enough on its own but also plays well with a side salad or crusty bread.

To store, let it cool completely, then refrigerate in an airtight container for up to 4 days. It reheats beautifully in the oven or microwave. For freezing, wrap tightly and store for up to 2 months.

What to Serve With Philly Cheesesteak Casserole?

Garlic Parmesan Roasted Potatoes

Crispy edges and buttery insides pair wonderfully with the creamy casserole.

Roasted Broccoli or Green Beans

A simple veggie side balances the richness.

Caesar Salad

The crisp romaine and tangy dressing refresh your palate.

Crusty Bread or Rolls

Perfect for scooping or soaking up that cheesy goodness.

Pickled Jalapeños or Banana Peppers

A spicy kick cuts through the creamy layers.

Sweet Potato Fries

Adds a sweet contrast to the savory casserole.

Classic Coleslaw

Crunchy and creamy with a vinegar bite to lighten the meal.

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Want More Casserole Ideas?

If this Philly Cheesesteak Casserole has you in comfort food mode, check out these other hearty bakes:

• Chicken Cordon Bleu Casserole for a creamy twist on the classic.
• Cheesy Hamburger Casserole if you want a family-style burger in a dish.
• French Onion Casserole packed with caramelized flavor.
• Mexican Tortilla Casserole layered with bold Tex-Mex flavor.
• Million Dollar Ravioli Casserole for a rich, cheesy bake.

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