Those were a staple for me in my bachelor days and I made them for my wife a few times, too.
I'd get them frying in a big pan, (in butter,, of course) and when about halfway done, add sliced onions and bread slices to the pan. When everything was done, the patties, onions and a slice of mild cheese would go on the grilled bread. Greasy and delicious.
Made in Grand Rapids!
