La Fonda Roberto's - Tijuana
Here is a link to their website on elmesero,com (no English translation on the site is apparent),
It looks fairly recently updated - maps to their location on the front page and the menu and services are are listed on the main page links.
Just don't get a headache from all the of fancy flash videos they have up,
Yes it's still kicking, but it's moved. My companion was there just a couple of weeks ago. An acquaintance of ours who was with her has known the owner for a long time, so they got some tasty comps and a nice sit-down chat.
I'm having trouble recalling, but this may be where I first had huazontles, another uncommon dish (to me, anyway). I remember not knowing how to eat them, and started by trying to cut them up and eat them with a fork! Wrong!