Philly Cheese Steak Casserole

4.72 from 14 votes

Philly Cheese Steak Casserole

Thin pieces of sirloin browned in garlic butter, green peppers, mushrooms, and onion, all stirred into egg, cream cheese, and mozzarella and baked in a 9x13-inch dish under provolone slices at 400°F for about 25 minutes. Makes 8 servings in under an hour.

Prep Time30

Cook Time25

Total Time55

Course: Dinner

Cuisine: American

Keyword: cheesesteak casserole recipe, philly cheese steak casserole, philly cheesesteak casserole recipe

Servings: servings

Calories: 326kcal

Author: Sara Nelson

Ingredients

1 ½ pound sirloin steak
1 tablespoon unsalted butter
2 teaspoons minced garlic
¾ cup chopped green bell peppers
2 cups roughly chopped white mushrooms
½ cup thinly chopped yellow onion
1 egg
1 cup shredded mozzarella cheese
6 ounces cream cheese softened
½ teaspoon pepper
¼ teaspoon salt
6 slices provolone cheese

Instructions

Slice Steak: Cutting against the grain, slice steak into thin strips, then cut the strips into ½-inch pieces.
Preheat Oven: Preheat oven to 400°F and spray 9x13-inch baking dish with nonstick cooking spray.
Cook Steak: In a large skillet over medium heat, melt butter. Add minced garlic and heat until fragrant, about 1 minute. Add sliced steak and cook until browned. Transfer cooked steak to plate or bowl and set aside. Discard liquid from pan.
Cook Vegetables: To same skillet over medium-high heat, add peppers, mushrooms, and onions and cook until vegetables are tender and liquid has evaporated, about 5 to 7 minutes. Remove skillet from heat. Set aside.
Mix Ingredients Together: To a mixing bowl, add egg, shredded mozzarella, cream cheese, pepper, and salt and, using an electric mixer, mix until well combined. Stir in cooked steak and vegetables.
Prepare Casserole in Baking Dish and Bake: Transfer mixture into prepared baking dish and arrange provolone cheese slices in an even layer atop mixture. Transfer dish to middle oven rack to bake until edges of casserole are golden brown and bubbling, about 25 minutes.
Serve: Remove baking dish from oven and allow casserole to cool for at least 10 minutes before slicing and serving.

Video

Notes

Refrigerator Storage: Allow the casserole to cool down to room temperature before storing leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual servings in the microwave in 30-second increments until warmed throughout.

Freezer Storage: Allow the casserole to cool down to room temperature before storing the prepared casserole in an airtight container in the freezer for up to 3 months. Allow the dish to defrost in the fridge overnight before reheating in the oven at 400°F until warmed throughout.

Nutrition