You've probably seen deconstructed recipes discussed on television cooking shows. This is a version of deconstructed meatball sandwiches made into a casserole that works for a crowd. It's a simple recipe that is easy to throw together, especially if you cook the meatballs and tomato sauce in advance. The recipe includes homemade meatballs and a quick sauce. But you can save time on a busy night by using store-bought meatballs. The quick sauce recipe is also great for pizza or pasta. It's much better than the jarred versions.