Mighty Taco has everything in the Cheap Mexican category. Veggie tacos (even the bean tacos I think would be vegan friendly). I love the place and I don't even eat meat! Though, when I did, I'll have to say that A supermighty really hits the spot.
This is one of those quintessential buffalo foods that any visitor should go and try, just like bufalo wings. You just can't get a supermighty anywhere else.
Pros: Cheap, Tasty, Yummy
Cons: Can be skanky