southwestern style food
do you mean Tx, Mexico Nuevo, or Az ? the chilies in New Mexico really makes the regional food there distinctive, and nearly impossible to replicate elsewhere.
in Albuquerque, there's a traditional('down home cookin') place called Barelas Coffee House. setting the chilies issue aside, in Goleta there's a diner along the same lines, called Domingo's. you can have menudo or chile rellenos with eggs for breakfast, or more conventional stuff, and they serve dinners as well as the morning/midday meals, as traditional diners do.
My favorite in CA (Anita's in Fullerton) is now closed. So now the only legit New Mexican style food I know of is in Santa Barbara. Zia Cafe. Not great but decent. Adovada is about right and they do a good salsa and sopapilla. But nothing like NW,
In ABQ nothing beats Duran's Pharmacy for the real deal. Christmas style and homemade buttered flour tortillas all the way.