Philly Cheesesteak Casserole

Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 6
Difficulty: Easy
Calories per Serving: ~450 kcal

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Description

This Philly Cheesesteak Casserole takes all the delicious flavors of a classic Philly cheesesteak—tender beef, sautéed peppers and onions, and melty cheese—and transforms them into an easy, family-friendly casserole. Perfect for weeknight dinners, this dish is hearty, cheesy, and packed with protein.

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Ingredients

Main Ingredients

• 1 lb (450g) thinly sliced ribeye steak or sirloin

• 1 large green bell pepper, thinly sliced

• 1 large onion, thinly sliced

• 8 oz (225g) mushrooms, sliced (optional)

• 2 cloves garlic, minced

• 2 tbsp olive oil

• 1 tsp salt

• ½ tsp black pepper

• 1 tsp Worcestershire sauce

Cheese Sauce

• 2 cups shredded provolone cheese (or American cheese)

• ½ cup heavy cream (or milk for a lighter version)

• 1 tsp garlic powder

• ½ tsp onion powder

Topping

• 1 cup shredded mozzarella cheese

• ½ cup grated Parmesan cheese

Optional Add-Ins

• 1 cup cooked rice or pasta (for extra bulk)

• ½ tsp red pepper flakes (for heat)

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Instructions

Step 1: Preheat & Prep

• Preheat oven to 375°F (190°C).

• Grease a 9×13-inch baking dish with cooking spray or butter.

Step 2: Cook the Beef & Veggies

1. Heat 1 tbsp olive oil in a large skillet over medium-high heat.

2. Add the sliced steak, season with salt & pepper, and cook for 3-4 minutes until browned. Remove and set aside.

3. In the same skillet, add the remaining 1 tbsp olive oil, then sauté bell peppers, onions, and mushrooms for 5-6 minutes until softened.

4. Stir in garlic and Worcestershire sauce, cooking for 1 more minute.

5. Return the beef to the skillet and mix well.

Step 3: Make the Cheese Sauce

• In a small saucepan, warm the heavy cream over low heat.

• Stir in provolone cheese, garlic powder, and onion powder until fully melted and smooth.

Step 4: Assemble the Casserole

1. Spread the beef & veggie mixture evenly in the baking dish.

2. Pour the cheese sauce over the top.

3. Sprinkle with mozzarella and Parmesan cheese.

Step 5: Bake

• Bake uncovered for 15-20 minutes until bubbly and golden.

• For extra browning, broil for 1-2 minutes (watch carefully!).

Step 6: Serve

• Let cool for 5 minutes before serving.

• Garnish with fresh parsley or extra cheese if desired.

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Nutritional Information (Per Serving)

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Tips & Variations

✅ Make Ahead: Assemble the casserole (without baking), cover, and refrigerate for up to 24 hours before baking.
✅ Freezer-Friendly: Freeze baked casserole for up to 3 months (thaw before reheating).
✅ Low-Carb Option: Skip rice/pasta and serve with a side salad.
✅ Vegetarian Twist: Substitute beef with portobello mushrooms or soy-based steak strips.

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Final Thoughts

This Philly Cheesesteak Casserole is a crowd-pleaser—easy to make, packed with flavor, and perfect for busy nights. The gooey cheese, savory beef, and tender veggies make it irresistible!