Philly Cheesesteak Casserole – All the Flavor, None of the Fuss

Philly Cheesesteak Casserole 🧀🥩🌶️

Introduction

If you love a classic Philly cheesesteak but want something easier and cozier than a sandwich, this Philly Cheesesteak Casserole is your new go-to. Loaded with thin-sliced beef, sautéed onions and peppers, mushrooms, and melty provolone cheese, it’s everything you love about the original—without the roll (unless you want it!).

It’s savory, creamy, cheesy, and ready in one pan, which makes it ideal for weeknights, potlucks, or game day eats.


Why I Love This Recipe

  • All the cheesesteak flavors, no sandwich required
  • One-skillet meal that’s simple and satisfying
  • Topped with bubbly provolone for the ultimate cheesy finish
  • Easily pairs with rice, pasta, rolls, or mashed potatoes
  • Great for leftovers and meal prep

Ingredients

  • 1 tablespoon oil
  • 1 yellow onion, sliced
  • 2 green bell peppers, sliced
  • 1½ lbs thin-sliced beef (about ⅛-inch thick)
  • 8 oz cremini mushrooms, sliced
  • 2 tablespoons Worcestershire sauce
  • 4 oz cream cheese
  • 4 cloves garlic, minced
  • ¾ teaspoon salt
  • ½ teaspoon black pepper
  • 8 oz sliced provolone cheese

Optional Sides:

  • Mashed potatoes
  • Cooked pasta
  • Steamed rice
  • Fresh rolls

Instructions

1. Sauté the Onions and Peppers:

  • Heat oil in a large oven-safe skillet over medium heat.
  • Add onions and cook until softened, about 4–5 minutes.
  • Add green peppers and stir-fry another 3–4 minutes, until slightly tender.
  • Remove onions and peppers from skillet and set aside.

2. Cook the Beef and Mushrooms:

  • If needed, add another splash of oil to the skillet.
  • Add the sliced beef and cook until mostly browned.
  • Stir in mushrooms and cook until mushrooms are tender and beef is fully cooked through.

3. Build the Casserole:

  • Return the onions and peppers to the pan.
  • Add Worcestershire saucegarlicsalt, and pepper.
  • Stir in the cream cheese until it melts into the mixture and creates a creamy sauce.

4. Add the Cheese & Broil:

  • Top evenly with sliced provolone cheese.
  • Place the skillet under the broiler on low heat for 2–3 minutes, or until cheese is fully melted and bubbling.

5. Serve:

  • Let it rest for a couple of minutes, then serve hot with your favorite side!

Tips for Success

  • Use ribeye or sirloin for the most authentic flavor and tender texture.
  • Don’t overcook the beef—remove from heat as soon as it’s no longer pink.
  • Swap provolone for mozzarella or Swiss if preferred.
  • Want to go low-carb? Skip the sides and enjoy it casserole-style.

Serving Suggestions & Pairings

This dish is so flexible—it works with:


Storage & Leftovers

  • Fridge: Store in an airtight container for up to 4 days
  • Freezer: Freeze cooled casserole portions up to 2 months
  • Reheat: Warm in a 350°F oven or microwave until bubbly and hot

More Recipes You’ll Love

If you like cheesy, savory, skillet-based comfort food, check these out:


Final Thoughts

This Philly Cheesesteak Casserole is the kind of one-pan dinner that wins over everyone at the table. It’s rich, cheesy, packed with bold flavor, and endlessly customizable. Whether you serve it over carbs or scoop it straight from the skillet, it’s a guaranteed hit.

Try it and tag @chefmaniac—we’d love to see your cheesy creations!
Follow along for more weeknight dinner heroes and party-worthy comfort food.