starting in south city I would recommend:
La Morena Taqueria, Baden Ave, South San Francisco
Cafe Buon Gusto, Grand Avenue, South San Francisco
Fook Yuen (although others will say the Kitchen and Zen Peninsula) on El Camino in Millbrae. All are good, as is Family China Bistro, for dim sum. Classic Sichuan on El Camino is eponymous.
Juban and Mivan on Broadway in Burlingame for japanese and middle eastern.
Mediterranan Wraps on Burlingame Avenue
Himawari on 2nd Ave in San Mateo.
Pancho Villa and Tres Amigos on B Street in San Mateo.