San San Tofu, which used to be called Tan Tan Tofu, is two places in one. On one side is a bustling takeout station, where servers pack up fried tofu, tofu salads and vegetarian spring rolls as fast as they can for a long line of eager customers. On the other side is a small, vegetarian buffet serving many different kinds of Vietnamese dishes. Don't miss the fabulous lemongrass tofu.