One of the greatest food items is the patty melt. It's a burger, it's a sandwich, it's delicious.
As great dinner sandwiches go, it is hard to beat the patty melt
The patty melts deliciousness comes from the fact that's it's only four components. Rye bread, , Cheese, and grilled onions. The simplicity doesn't mean you can't customize it though. Dark, light, and marbled rye each add a different flavor, but the biggest way to customize it though is the choice of cheese. Swiss and American are the two classics, but I think cheddar and muenster also deserve consideration.
BONUS: If you want to make the patty melt even better, make sure to include a pickle on the side for dessert.