Philly Cheesesteak Casserole: A Comforting Twist on a Classic Favorite
Inspired by the legendary sandwich born in Philadelphia, the Philly cheesesteak casserole transforms the bold flavors of thinly sliced beef, sautéed peppers and onions, and melted cheese into a hearty, oven-baked dish. It’s everything you love about a traditional cheesesteak—savory, cheesy, and satisfying—served in comforting casserole form.
This recipe is perfect for family dinners, potlucks, or meal prep. Let’s walk through it step by step.
Why You’ll Love This Recipe
- Rich, savory beef flavor
- Gooey, melty cheese in every bite
- Easy to prepare ahead
- Lower-carb option (no hoagie rolls required)
- Customizable with your favorite add-ins
Ingredients You’ll Need
For the base:
- 1 ½ pounds thinly sliced beef (ribeye or sirloin work best)
- 1 tablespoon olive oil
- 1 large onion, thinly sliced
- 1 green bell pepper, sliced
- 1 red bell pepper, sliced
- 2 cloves garlic, minced
- Salt and black pepper to taste
For the creamy layer:
- 4 ounces cream cheese, softened
- ½ cup sour cream
- 1 teaspoon Worcestershire sauce
For the topping:
- 6–8 slices provolone cheese (or 1 ½ cups shredded provolone or mozzarella)
Optional:
- Mushrooms (sliced)
- Red pepper flakes
- Fresh parsley for garnish
Step-by-Step Method
Step 1: Prepare the Oven and Baking Dish
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish to prevent sticking.
Step 2: Cook the Vegetables
Heat olive oil in a large skillet over medium heat. Add the sliced onions and bell peppers. Sauté for about 5–7 minutes until softened and slightly caramelized.
Add the garlic and cook for another 30 seconds until fragrant. If using mushrooms, add them now and cook until tender.
Remove the vegetables from the skillet and set aside.
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