Wow! We ate dinner and breakfast at this small, family-run restaurant on two different days and can't rave about it enough. The food is traditional Oaxacan, with a nod towards the "old ways". The Margarita Especial is very tasty, too, but I recommend only having one as they very strong! We tried many different types of food, and I recommend everything! Walk up the Acala (the pedestrian street) past Santo Domingo church and convent to the corner of Humboldt, and it's the little yellow restaurant on your right.