Finding vegan options in an airport can be very challenging. After looking for all of B and C terminals, Tequileria Grille looked like the best option because they actually used the word "vegan" on their menu. You have the option of getting the veggie selection as tacos or a burrito. I went the burrito route and it was better good. It was better than most airport veggie burritos. But the one negative surprise was that it had cooked black beans and refried beans. Not sure why you would put whole cooked beans with processed (and tortured) refried beans into the same burrito.