Meatloaf, despite the bad reputation it has, is one of my all time favorite foods. This crockpot meatloaf recipe is one of the tastiest ones I have tried (it even replaced my old standby meatloaf recipe) and because it is made in the slow cooker it is so easy to make. It's finished off with an amazing mustard sauce that adds a wonderful finishing touch. There are never leftovers when I make this! This is the perfect recipe for a busy weeknight dinner.