I'm not a vegetarian, and I like regular meat burgers, so I was skeptical of veggie burgers at first. Although I eat meat, I still try to eat a lot of vegetables because I do like them and they have a lot of nutrients.
Lately I've been having Boca Burgers for lunch and they are pretty good. I zap 'em in the micro and it is actually pretty satisfying. My wife thinks that they taste much better when cooked in a frying pan with ketchup and mustard.
Morning Star is another tasty brand for vegetarian burgers. They are delicious prepared in the toaster over, or on a George Foreman grill. Their vegetarian options for chicken are also delicious.