Vegetarian dinner, near Moscone Ctr, any cuisine - Recs please
I like Samovar Tea Lounge, which is sort of hidden up on the patio above Yerba Buena Gardens. Tons of veggie friendly options like vegetarian squash dumplings, japanese sweet potato soup (ask for it off the menu; they almost always have it), jook, tofu tamari sandwich, Indian curry, etc, plus tons of non-veggie options.
You can see the full menu (although prices aren't listed) here: http://samovarlife.com/food/
Samovar Tea Lounge
730 Howard St, San Francisco, CA 94103