I don't hit the fast food joints often as I live in an area of great food that's availble fast (Berkeley's "Gourmet Ghetto"). However, there's a Popeye's near me that puts out a nice, spicy chicken breast, and not to far afield there's an In 'n' Out Burger. Oh, there's a Subway that I've visited a few times - I enjoy their veggie sandwhich - kinda healthy and I love the crispness and the crunch from the veggies.
However, for about the same money as a meal at these places I can hit any one of some local deli's, a few pizza places that make exceptional NY or Chicago-style pizza, and any one of a number of Chinese, Indian, Ethiopian, Cambodian, Thai, etc. places if I want to grab a quick, good quality, and inexpensive lunch.