Southern Accent's got a rotating vegetarian main, and it's always proven to be well-executed and decent for value. It also happens to be gluten free in case anyone has that preference/restriction.
Their tofu po'boy is solid too--one can't complain when a sandwich + fries combo is $6. If you're satisfying a sweet tooth, their sweet potato brownie is worth a taste. On top of it all, you can get a Babbling Brooke's Root Beer from Nickel Brook Brewery to round out your fast food experience.