As a vegetarian, I'm a HUGE fan of Quorn. Their naked cutlets are a good subtitute for non-breaded chicken (ok, probably not for an omnivore, but they do it for me!). I love to grill them on the George Foreman, along with some red bell peppers and mushrooms, toss them with garbanzo beans, and marinate them in a mix of balsamic vinegar, soy sauce, and crushed red pepper (marinade taken from f*ckcorporategroceries.net). My omnivore parents enjoyed this so much, they ate more than I did last time I made it.