I'm not gonna make a claim as it being the best Mexican food, but it comes pretty close. I for some reason always crave a Carne Asada burrito from Albertos. I think this chain was originally started down in San Diego, and has gradually grown in Southern Cali. Since then the restaurant names have changed/converted probably due to franchise rights into names such as Alertos, Albertacos, etc. If you ever get a chance, you gotta try them out. Its sooo grubbin. Can't get this kinda mexican food in Japan. Gosh I wish someone would open one up in Tokyo. Might be difficult though, can't replicate the flavor with Kobe beef. Hmm....Kobe Asada might be kinda good. But it just isn't the same without the cheap steak available in the US.