Where is the best Mexican food in the U.S.? It’s a complex question fueled with fiery debates and passionate proclamations.  Tucson boasts 23 miles of quality Mexican food and is an UNESCO City of Gastronomy. Phoenix, however, is more than happy to step into the ring to duke it out on who has the best Mexican food. With literally hundreds of shops, from humble food trucks to exquisitely high-brow dining concepts, Phoenix holds its own as a culinary contender. 
In this episode, Valley 101 plays referee between two Mexican food heavy-weights: Phoenix and Tucson.