Creamy Meatball Sub Casserole
This creamy meatball sub casserole has a layer of bread, a layer of seasoned creamy cheese, and meatball spaghetti sauce that is all baked together for the ultimate crowd-pleaser.

Preheat oven to 400 degrees F (200 degrees C).

Mix ground beef green onion bread crumbs and Parmesan cheese together in a bowl; form into 1-inch meatballs.

Arrange meatballs in a baking sheet.

Bake in the preheated oven until no longer pink in the center 15 to 20 minutes.

An instant-read thermometer inserted into the center should read at least 160 degrees F (70 degrees C).

Arrange bread slices in a single layer in a 9×13-inch baking dish.

Combine cream cheese mayonnaise Italian seasoning and pepper in a bowl; spread over bread slices.

Sprinkle 1/2 of the mozzarella cheese over the cream cheese mixture.