A vegetarian (vegan, if you get it without cheese) sub available at Subway restaurants. It is the only sub with no fat at all, because of the fact that it consists entirely of vegetables. Pile on as many as you like, top it off with some dressing, and you have a cheap and (somewhat) healthy lunch.
A 12-inch Veggie Delite served as the cornerstone of Jared Fogle's much-hyped Subway diet, which enabled him to lose 245 pounds. Your results may vary.
Veggie Delite is a registered trademark of Doctor's Associates, Inc.