― I don't know about y'all, but I love a casserole. I don't know if it's a Southern thang or what...but chicken casseroles, pork chop casserole, you name it. So, when I saw this Meatball Sub Casserole on Pinterest, I was ready to give it a try. Especially since it had a nice, cheesy picture to go with it. (There is one problem however. I don't even like meatball subs. But....I made it anyway. Because I'm weird like that.) I figured, how can you go wrong with bread, cheese and pasta sauce. [...].