My heritage is Sonoran- Mexican, as with most Mexican-American families in Arizona. Unlike the rest of Mexico it's cattle country, and the tortillas are made of wheat flour. As with any Mexican food, the best Mexican food is served in the home of a Mexican farm or ranch family--even in Arizona.
I'm not going to give you my mother's address, but I'll give you a good "foodie" alternative for Mexican.
In Tucson, Arizona go to St. Mary's Tortilla factory order at least a dozen of the finest Sonoran thin flour tortillas you'll ever eat, and order a "Machaca Burro" (In AZ there's no such thing as "burritos")and savor a true Sonoran Mexican nosh. Machaca is a stew of dried beef (jerky or carne seca in Spanish) and in this case it is mixed with mild green chiles and refried beans.
I will follow with the address of St. Mary's Tortilla factory later. (I think it on St. Mary's Rd and Silver Bell Rd.)