An easy, deconstructed version of a meatball submarine sandwich, all baked into a hearty casserole. This simple recipe uses several convenient shortcuts, including frozen, fully-cooked meatballs and jarred pasta sauce. The base of the casserole is made from toasted and garlic-rubbed sourdough bread. The meatballs are heated and tossed with pasta sauce and a mix of mozzarella and Parmesan cheeses, then poured over the bread, topped with more cheese, and baked until melted and bubbly.
Find it online: https://www.eatswithsoul.com/meatball-sub-casserole/