Absolutely wonderful find! I was served by a young kid named "Jade" who was practicing her English with me and it was super cute. It is very close to Cholula's pyramid with the church on top. They graciously made food when a friend and I came in right before closing and as well they serve pulque which I had totally wanted to try. This is a definitely Mexican hippie-vibe type of place, and they completely understood veganism and catered to me. Excellent experience! Note: they also sell handicrafts as well as Mexican DVDs.
Cons: maybe hard to find, look for the sign, closes early