Why You’ll Love This Recipe

This Easy Philly Cheese Steak Casserole captures all the bold, savory flavors of the classic sandwich—thinly sliced beef, sautéed peppers and onions, and plenty of melted cheese—in a comforting, oven-baked form. Perfect for feeding a family or serving at a potluck, it’s a low-effort, high-reward meal that’s hearty, cheesy, and utterly satisfying.

ingredients

Easy Philly Cheese Steak Casserole Recipe

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

thinly sliced beef (ribeye or shaved steak)green bell pepper (sliced)red bell pepper (sliced)yellow onion (sliced)garlic (minced)cream cheeseprovolone cheese (sliced or shredded)mozzarella cheese (shredded)eggsheavy creamolive oilsaltblack pepperoptional: mushrooms or hot banana peppers

directions

Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish.

Heat olive oil in a large skillet over medium-high heat.

Add the sliced onions and bell peppers, sautéing until softened, about 5-7 minutes. Add garlic and cook for another 30 seconds.

Add the sliced beef to the skillet, season with salt and pepper, and cook until browned and just cooked through. Drain excess liquid if necessary.

Turn off the heat and stir in the cream cheese until melted and well combined.

Spread the beef and vegetable mixture evenly into the prepared baking dish.

In a bowl, whisk together eggs and heavy cream. Pour this mixture over the beef and veggies.

Top with shredded mozzarella and provolone cheese.

Bake for 25-30 minutes, or until the cheese is melted and bubbly and the center is set.

Let cool slightly before serving.

Servings and timing

This recipe yields approximately 6 servings.Preparation time: 15 minutesCooking time: 30 minutesTotal time: 45 minutes

Variations

Use ground beef instead of sliced steak for a budget-friendly version.

Add sautéed mushrooms for an earthy flavor boost.

Swap provolone with cheddar or Swiss for a different cheese profile.

Make it spicy with sliced jalapeños or hot banana peppers.

Serve over toasted hoagie rolls for a deconstructed sandwich experience.

storage/reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days.To reheat, microwave individual portions for 1-2 minutes or warm in a 350°F oven until heated through.This casserole also freezes well—wrap tightly and freeze for up to 2 months. Thaw overnight in the fridge before reheating.

FAQs

Can I make this casserole ahead of time?

Yes, assemble it the night before and refrigerate. Bake when ready to serve.

What type of steak works best?

Ribeye or shaved steak is ideal for its tenderness and flavor.

Is this casserole low carb?

Yes, it’s naturally low in carbs, making it keto-friendly.

Can I use frozen peppers and onions?

Yes, just be sure to sauté off any excess moisture before adding to the dish.

Do I need to use both mozzarella and provolone?

No, but the combo gives a great melt and flavor balance.

How do I know when it’s done baking?

The top should be golden and bubbly, and the egg mixture should be set in the center.

Can I double the recipe?

Yes, use a larger baking dish or two separate ones and adjust bake time as needed.

What sides go well with this?

Try a green salad, roasted veggies, or garlic bread.

Can I make this dairy-free?

Use dairy-free cheeses and coconut milk or a plant-based cream alternative.

Is this kid-friendly?

Definitely! The cheesy, savory flavors are a hit with kids.

Conclusion

Easy Philly Cheese Steak Casserole is a cozy, cheesy twist on the iconic sandwich that’s made for weeknight dinners and casual gatherings. With tender beef, sweet peppers, and gooey cheese in every bite, it’s a satisfying meal that’s quick to prep, endlessly customizable, and always a crowd-pleaser.