RE: Good Mexican Food in Atlanta
I assume that you are looking for Mexicans preparing food for Mexicans. Several places around here are quite good at preparing Mexican food for Anglos - Nuevo Laredo is an excellent example.
I would suggest Supermercado Jalisco, Jonquil Plaza Shopping Center, on Atlanta Road just north of Spring Road/Concord Road in Smyrna. They have a very clean, fairly large dining area within the supermarket and serve a variety of excellent tortas (sandwiches), burritos, and tacos at what I feel are very reasonable prices.
Restaurant LaPlacita on Jonquil Drive at Spring Road in Smyrna serves Oaxacan cuisine. The tlayudas are outstanding. Everything else is quite good.
El Azteca Groceria (Alpharetta Hwy just south of Holcomb Bridge/Crossville), Taco Mas (across from El Azteca and slightly north), and Carniceria San Miguel (on Holcomb Bridge one block west of GA 400) in Roswell are excellent and casual with menus which are similar to Supermercado Jalisco above.
Mr. Taco is on Warsaw (behind CVS Pharmacy) at Holcomb Bridge in Roswell. Very casual with full menu of Mexican dishes.
If you are interested in Mexican for Anglo cuisine, Neuvo Laredo (mentioned in earlier post) is very good and very busy. We waited an hour and a half for a table when we arrived at 1pm on a Sautrday.
Pure Taqueria is a new venture in Roswell operated by local Anglo chefs who have three other excellent restaurants. It is just north of Old Milton Parkway on Roswell Street in Alpharetta. This is one block west of Alpharetta Hwy - just south of downtown Alpharetta. Open from 11am to 10pm daily, the dishes are tasty and the presentation and menu are unlike the typical Mexican restaurants of the area. Last week, I had excellent lamb tacos.
I spent 21 years of my earlier life in New Mexico, before moving to Georgia 23 years ago. I have enjoyed trying the various Mexican possibilities that have almost all arrived since I moved here. Good luck on your quest.