Philly Cheesesteak Casserole Bake

This keto Philly cheesesteak casserole bake captures all the savory flavors of the classic sandwich without the bread. Seasoned ground beef, sweet bell peppers, onions, and a rich blend of provolone and cheddar are baked in a creamy egg and heavy cream base for a hearty, low-carb comfort food dish. Perfect for meal prep, weeknight dinners, or game-day spreads, this casserole is satisfying, cheesy, and completely keto-friendly.

Course Casserole, Dinner, Lunch, Main Course

Cuisine American

Keyword Casserole, gluten free, ground beef, keto, low-carb, meal prep, philly cheesesteak

Prep Time 15

Cook Time 35

Total Time 50

Servings servings

Calories 520kcal

Equipment

large skillet
Mixing bowl
Whisk
9x13-inch Baking Dish
Cutting board
Chef's knife
measuring cups
measuring spoons

Ingredients

For the beef and vegetables

1 1/2 pounds ground beef preferably 80/20
2 tablespoons olive oil
1 cup green bell pepper thinly sliced
1 cup red bell pepper thinly sliced
1 cup yellow onion thinly sliced
2 cloves garlic minced
1 teaspoon sea salt or to taste
1/2 teaspoon black pepper freshly ground
1/2 teaspoon onion powder
1/2 teaspoon garlic powder
1/4 teaspoon smoked paprika optional, for a subtle smoky flavor

For the creamy egg base

6 large eggs at room temperature if possible
3/4 cup heavy whipping cream
1/4 teaspoon sea salt
1/4 teaspoon black pepper

For the cheese layers

1 1/2 cups shredded provolone cheese divided
1 cup shredded sharp cheddar cheese
1 tablespoon butter for greasing the baking dish

Optional toppings for serving

2 tablespoons fresh parsley chopped, for garnish
1/4 cup sliced pickled jalapeños optional, for heat

Instructions

Preheat the oven to 375°F and generously grease a 9x13 inch baking dish with the butter.
Heat the olive oil in a large skillet over medium high heat until shimmering.
Add the ground beef to the skillet and cook, breaking it up with a spatula, until browned and cooked through, then drain any excess grease if desired and return the beef to the skillet.
Add the sliced bell peppers, sliced onion, and minced garlic to the skillet with the beef and cook, stirring occasionally, until the vegetables are softened but still slightly crisp, about 5 to 7 minutes.
Season the beef and vegetable mixture with the sea salt, black pepper, onion powder, garlic powder, and smoked paprika, then stir well to evenly coat and remove the skillet from the heat.
Spread the beef and vegetable mixture evenly over the bottom of the prepared baking dish and sprinkle half of the shredded provolone cheese over the top to create the first cheesy layer.
In a mixing bowl whisk together the eggs, heavy whipping cream, sea salt, and black pepper until the mixture is completely smooth and slightly frothy.
Slowly pour the egg and cream mixture evenly over the beef and vegetable layer in the baking dish, tilting the dish gently if needed to help it distribute throughout the casserole.
Top the casserole with the remaining shredded provolone cheese and all of the shredded sharp cheddar cheese, spreading the cheeses into an even layer to fully cover the surface.
Bake the casserole in the preheated oven for 25 to 30 minutes or until the eggs are just set in the center and the top is melted, bubbly, and golden brown in spots.
Remove the casserole from the oven and let it rest for 5 to 10 minutes to firm up slightly, then garnish with chopped parsley and sliced jalapeños if using, slice into portions, and serve warm.

Notes

To keep this casserole strictly keto, stick with full fat cheese and heavy whipping cream rather than milk or reduced fat products. You can substitute sliced steak for the ground beef if you prefer a more traditional cheesesteak texture, but be sure to slice it thinly so it cooks quickly and remains tender. For easy meal prep, cool leftovers completely, then store tightly covered in the refrigerator for up to 4 days, reheating individual portions in a 350°F oven or in the microwave until warmed through. Feel free to customize the vegetables with other low carb options such as mushrooms or additional peppers, keeping overall net carbs in mind.

Nutrition