Every year Annunciation Cathedral in SF hosts a Greek Food Festvial, this year on Sep 25, 6 and 7. It's lots of fun, excellent home style greek food , retsina, dancing etc. We just go for the food.
http://www.annunciation.org/festival/
you can print out tickets form free admission on the site. Valet parking is available, can't remember how much, and it's a couple of blocks from BART.
Friday till 10 PM, tomorrow 11 AM-10 PM, Sun 11 AM - 9 PM