I was last in SF about 5 years ago and I can't remember the name of an amazing little Chinese resto I visited. I remember it being near the American Zoetrope building (Kearny & Columbus). There was a line before they opened, so I imagine it's pretty popular. I also have a vague recollection that the name had something to do with the name of a city, but don't quote me on that!
I hope this is enough for SF hounds to help! Cheers!