A tavern sandwich is a sandwich consisting of ground beef on a bun, sometimes mixed with sauteed onions, and sometimes topped with pickles, ketchup, mustard, raw onions, and/or cheese.

A sloppy joe is a sandwich consisting of ground beef, onions, tomato sauce or ketchup, Worcestershire sauce, and other seasonings served on a hamburger bun. There are several theories about the sandwich's origin.