San Jose is probably the biggest local Mexican chain (though they don't all have the same ownership), and one I like pretty well. I never made it to this smaller location on Sunset not far from the zoo, and in fact am pretty sure I did not know that it was there. Commenter MB notes that it wasn't there too long. I have to say Sunset Center has a good-looking ice cream cone on their sign!
(Hat tip to commenter MB)