This monstrosity called ASSI is a haven of asian shopping. Originally a korean store, it features items from a huge variety of asian cultures.
It is one of the biggest asian shopping centers one could find in the United States, and the availability of the food is overwhelming to the degree that one would feel that they're in actually asia.
I wouldn't know where to begin if I started counting their items, and if you want something, you can probably find it here.
Apart from food, you can get korean music/dvds, pastries and gift items in a special section of the plaza, which are quite hard to come by in America. I would also recommend the boba drink shop's snow bobas.