Philly Cheesesteak Meatloaf with green bell peppers, onions and mushrooms topped and stuffed with Provolone Cheese.

Philly Cheesesteak Meatloaf is officially our new favorite meatloaf in our house. We’ve been on an everything Philly Cheesesteak kick through the summer and this meatloaf is just replacing our previous favorites.
We have a go-to meatloaf recipe we’ve used for years and a bacon cheeseburger meatloaf (this is coming in the fall). This recipe is 100% better than that one and I LOVE that one. So take that recommendation as seriously as you want. 

Ingredients

1 tablespoon oil
1 onion, diced
1 green bell pepper, diced
8 ounces mushrooms, diced
2 cloves garlic, chopped
2 pounds ground beef
1/2 teaspoon salt
1/2 teaspoon pepper
1/2 cup cheese whiz (optional)
1 teaspoon Worcestershire sauce
2 tablespoons ketchup
2 eggs
1 cup panko breadcrumbs (gluten-free for gluten-free)
4 ounces provolone (optional)
8 slices provolone