Originally Posted by RicL

Best: Her invention "shepherd's pie burgers". She'd cut hamburger with a can of tomato paste, fry the burgers till cooked. Cover each burger with a patty of stiff mashed potatoes and then (while still in the pan) throw a good large but thin slice of cheddar cheese over them. There was just something about the tomato paste that made them amazing, it caramelized and changed the flavor completely.