Overlooking Yerba Buena Gardens is a wonderful tea café called Samovar. This is the place for tea connoisseurs as they offer tea varieties from all over the world as well as limited edition teas.
Samovar also offers tea and food pairings such as the tasty Russian Service with Tolstoy’s Sip Black Tea, which includes deviled egg with caviar, smoked salmon, and beets. If you want to watch your budget try the sandwiches or brunch items. The salmon quiche is terrific, as is the curry egg salad sandwich.
If the weather's nice enjoy the outdoor seating. After tea head across the street to the Contemporary Jewish Museum, Museum of Modern Art, or the Museum of the African Diaspora... all within a short walk. Or stay awhile enjoying the gardens.