I want to know, too! But my preference would be for something a bit cheaper than the current suggestions, & open on a Sunday night. (edited. i was asking about Bocadillos but they're closed on Sunday too.)
----- Bocadillos 710 Montgomery St, San Francisco, CA 94111
Good point that the potential wait at Tadich needs to be factored in. Bocadillos doesn't take reservations either but it may be less of an issue there.