lake Forest, Costa Mesa, Newport
Where are some decent lunch places in this area? Have to be here for business for 3 weeks. Dinner recommendations would be welcome, too. Dinner can be Buena Park, Fountain Valley, Westminster, Garden Grove and any of the beach areas. Love Vietnamese, Mexican, Korean and Middle Eastern. Thanks!
Here are some prior threads that will cover a wide swath of the OC. For Vietnamese you can't do better than getting a reply from Das Ubergeek (who hopefully will notice your post and chime in at some point). You also might google for a very excellent OC food blog by Elmomonster who provides lots of great OC eating ideas and wonderful photos of the food as well.