Philly Cheesesteak Casserole

Step 3: Sauté Vegetables

1. In the same skillet, add onion and green bell pepper. Cook until softened, about 5–6 minutes.
2. Stir in garlic and cook for another 1 minute.
3. Add Worcestershire sauce if using, then return the cooked beef to the skillet and stir to combine. Remove from heat.

Step 4: Prepare the Casserole Base

1. In a large mixing bowl, combine shredded potatoes, cream cheese, milk, and half of the shredded cheddar and mozzarella cheeses.
2. Season with a little salt and pepper and mix until well combined. This creates a creamy, cheesy layer for the casserole.

Step 5: Assemble the Casserole

1. Spread the potato and cheese mixture evenly into the prepared baking dish.
2. Layer the beef and vegetable mixture on top of the potato base.
3. Sprinkle the remaining shredded cheeses evenly over the top. Add provolone slices if you want an extra cheesy crust.

Step 6: Bake

Bake the casserole in the preheated oven for 25–30 minutes, or until the cheese is melted, bubbly, and lightly golden on top.

Step 7: Serve

Remove from the oven and let it cool for 5 minutes. Garnish with chopped parsley if desired, then slice into portions and serve warm. Pair with a simple side salad or roasted vegetables for a complete meal.

Tips for the Best Philly Cheesesteak Casserole

• Use thinly sliced beef: It cooks quickly and stays tender. Ribeye is ideal, but sirloin is a budget-friendly option.
• Customize your veggies: Red or yellow bell peppers, mushrooms, or even spinach work well.
• Make it ahead: Assemble the casserole a few hours before baking, cover, and refrigerate. Bake when ready to serve.
• Cheese lovers unite: Mix provolone, cheddar, and mozzarella for a rich, melty topping.

Why You’ll Love It:
This casserole captures the essence of a Philly cheesesteak without the fuss of making sandwiches for everyone. Every bite is loaded with beef, sautéed vegetables, and cheesy goodness, making it a cozy, crowd-pleasing dinner option. Plus, it reheats beautifully, making it perfect for leftovers or meal prep.

If you want, I can also create a shortcut version of this casserole that cooks in under 30 minutes, keeping all the flavor but saving a ton of time. It’s perfect for busy weeknights.

Do you want me to make that version too?