Go eat at Cha-Ya. They're located at 1686 Shattuck Avenue, Berkeley (510.981.1213, but no reservations). It's very very small so be prepared for a wait. But also be prepared for the best vegan Japanese food you'll ever eat.

Let me amend that. Be prepared for some of the best Japanese food you'll ever eat, vegan or not. Let me especially suggest the veggie tempura. I can even describe its deliciousness.