In my family it's gravy or "red sauce". It's gravy if it's slow cooked with various meats in it. Can be meatballs, sausage links, pork chops, chicken or whatever combination. Generally whatever is leftover or needs to be cooked. That'll simmer in a pot all day and you can just pick something out whenever you walk by and the rest is for dinner. Just watch out for the bones. Red sauce can be cooked fast or slow or incorporate bones but doesn't have the big chunks of meat in it. I've got no problem with sugar in my sauce, it depends on how acidic the tomatoes are