If you’re a fan of the iconic Philly cheesesteak sandwich but want something easier to make and perfect for feeding a crowd, this Philly Cheesesteak Casserole is your answer. Packed with all the flavors you love—tender steak, melted cheese, sautéed peppers, and onions—this casserole is a hearty, family-friendly dish that’s sure to become a weeknight favorite. Plus, it’s incredibly easy to customize and perfect for meal prep!

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Why You’ll Love This Philly Cheesesteak Casserole

1. All the Flavor, None of the Fuss: Forget the mess of assembling individual sandwiches. This casserole delivers the same delicious taste in one easy-to-serve dish.

2. Crowd-Pleasing Comfort Food: Whether it’s a family dinner, potluck, or game day gathering, this casserole is always a hit.

3. Customizable: Add your favorite ingredients like mushrooms, jalapeños, or even swap the cheese for a different flavor profile.

4. Meal Prep Friendly: Make it ahead of time and reheat for quick lunches or dinners throughout the week.

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Ingredients You’ll Need

Here’s what you’ll need to make this mouthwatering casserole:

• 1.5 lbs of ribeye steak or sirloin (thinly sliced for that authentic cheesesteak texture)

• 1 large onion (sliced into thin strips)

• 2 green bell peppers (sliced)

• 1 red bell pepper (sliced for added color and sweetness)

• 2 cups of shredded provolone cheese (or use Cheez Whiz for a truly authentic Philly touch)

• 1 cup of shredded mozzarella cheese (for extra gooeyness)

• 2 cups of cooked rice or egg noodles (optional, for a heartier base)

• 3 cloves of garlic (minced)

• 2 tbsp olive oil (for sautéing)

• 1 tsp Italian seasoning

• Salt and pepper (to taste)

• 1/2 cup beef broth (for added richness)

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Step-by-Step Instructions

Step 1: Preheat and Prep

Preheat your oven to 375°F (190°C). While the oven heats up, slice your steak, onions, and peppers into thin strips. This ensures even cooking and that classic Philly cheesesteak texture.

Step 2: Sauté the Veggies

In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add the onions and peppers, sautéing until they’re soft and slightly caramelized (about 8-10 minutes). Add the minced garlic and cook for another minute. Remove the veggies from the skillet and set aside.

Step 3: Cook the Steak

In the same skillet, add the remaining olive oil and cook the thinly sliced steak over medium-high heat. Season with salt, pepper, and Italian seasoning. Cook until the steak is browned and cooked through (about 5-7 minutes). Pour in the beef broth to deglaze the pan and add extra flavor.

Step 4: Layer the Casserole

In a greased 9x13 baking dish, spread the cooked rice or egg noodles (if using) as the base. Layer the cooked steak on top, followed by the sautéed peppers and onions. Sprinkle the shredded provolone and mozzarella cheese evenly over the top.

Step 5: Bake to Perfection

Bake the casserole in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly. For a golden-brown finish, broil for the last 2-3 minutes (keep an eye on it to avoid burning).

Step 6: Serve and Enjoy

Let the casserole cool for 5 minutes before serving. Garnish with fresh parsley or a sprinkle of red pepper flakes for a little kick. Pair it with a side salad or garlic bread for a complete meal.

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Tips for the Perfect Philly Cheesesteak Casserole

• Use High-Quality Steak: Ribeye or sirloin works best for that tender, juicy bite.

• Cheese Options: Provolone is classic, but you can experiment with American cheese, cheddar, or even pepper jack for a spicy twist.

• Make It Low-Carb: Skip the rice or noodles and add cauliflower rice or zucchini noodles instead.

• Freezer-Friendly: Assemble the casserole (without baking) and freeze it for up to 3 months. Bake straight from frozen, adding an extra 10-15 minutes to the cooking time.

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Frequently Asked Questions (FAQs)

1. Can I use chicken instead of steak?
Absolutely! Swap the steak for thinly sliced chicken breast or thighs for a lighter version.

2. How do I store leftovers?

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave.

3. Can I make this ahead of time?
Yes! Assemble the casserole, cover it, and refrigerate for up to 24 hours before baking.

4. What sides go well with this casserole?
Try serving it with a crisp green salad, garlic bread, or roasted vegetables.

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Final Thoughts

This Philly Cheesesteak Casserole is the ultimate comfort food dish that brings the flavors of a classic sandwich to your dinner table in an easy, shareable format. Whether you’re cooking for your family or hosting a gathering, this recipe is sure to impress. Give it a try and let us know how it turns out!