Philly Cheesesteak Casserole with Pasta Shells – The Ultimate Comfort Dish

Step 3: Cook the Beef

1. In the same skillet, add 1 tbsp olive oil.
2. Add the thinly sliced beef in batches, avoiding overcrowding, and cook until browned (about 2–3 minutes per batch).
3. Season lightly with salt, pepper, and crushed red pepper flakes.
4. Once cooked, combine the beef with the sautéed veggies.

Step 4: Make the Creamy Cheese Sauce

1. In a small saucepan, heat the heavy cream over medium heat until warm.
2. Stir in sour cream and half of the provolone cheese, stirring until smooth.
3. Taste and adjust seasoning with salt and pepper as needed.

Tip: The sauce should be creamy but slightly pourable to coat the pasta shells.

Step 5: Assemble the Casserole

1. Preheat your oven to 375°F (190°C).
2. In a large mixing bowl, combine the cooked pasta shells, beef and veggie mixture, and cheese sauce. Mix gently to coat evenly.
3. Transfer the mixture to a greased 9×13-inch baking dish.
4. Sprinkle the remaining provolone, mozzarella, and Parmesan cheese evenly over the top.

Step 6: Bake to Perfection

1. Cover the dish with aluminum foil and bake for 15 minutes.
2. Remove the foil and bake for an additional 10–15 minutes, or until the cheese is melted and golden brown.
3. Let the casserole rest for 5 minutes before serving to allow it to set slightly.

Step 7: Serve and Enjoy

• Garnish with fresh chopped parsley for a pop of color.
• Serve hot with a side salad or garlic bread for a full meal experience.

Tips for the Perfect Philly Cheesesteak Casserole

• Cheese Choice: Provolone is classic, but you can mix in cheddar or American cheese for a different flavor profile.
• Vegetable Variations: Add mushrooms for an extra layer of flavor.
• Make-Ahead: Assemble the casserole and refrigerate overnight. Bake it the next day; just add 5–10 extra minutes to the baking time.
• Leftover Hack: This casserole reheats beautifully in the microwave or oven, making it ideal for meal prep.

This Philly Cheesesteak Casserole with Pasta Shells turns a beloved sandwich into a hearty, cheesy, and indulgent dish perfect for family dinners, cozy nights, or potlucks. With layers of tender beef, savory peppers, and creamy cheese, it’s the ultimate comfort food that will leave everyone coming back for seconds.

If you want, I can also create a short, printable step-by-step version with photos for each step—perfect for the kitchen.

Do you want me to do that?