There's a thread from 2003 on the subject:
I used to be a big fan but I have to admit I haven't been to any of these places for years.
Mogo's Mongolian BBQ
4454 Van Nuys Blvd Ste K, Sherman Oaks, CA 91403
King's Mongolian Bar-B-Q
19652 Vanowen St, Reseda, CA 91335
317 S Broadway, Los Angeles, CA 90013
maxzook took the exact words out of my mouth. Multiple South Bay locations for Big Wok.
Three Flames Mongolian Bar-B-Q
5608 W Manchester Ave, Los Angeles, CA 90045
Big Wok Mongolian BBQ
250 N Sepulveda Blvd, Manhattan Beach, CA 90266
Golden Camel Mongolian
21006 Hawthorne Blvd, Torrance, CA 90503