I'm headed to Phoenix this coming weekend. Please recommend great, authentic down & dirty Mexican food. Barrio Cafe, Los Sombreros, etc. is far too easy a choice. Anybody can come up with those choices. C'mon people, you're supposed to be chowhounds, not Zagat-wannabes. If you're not sure what I'm looking for, remember my Travel Motto: "I'm looking for the most expensive hotel and the cheapest restaurants". This has served me well for many years in innumerable locations.