Further to the post regarding visiting San Francisco with children and where to eat, we would recommend:
Lori's Diner - about 400 yards down the hill from the Renaissance t
Roxanne's Cafe - opposite side of the road from the hotel and down a little
Uncle Vito's italian - a little way down the hill and has kids menu
All downhill towards Union Square - a steep walk back!
Days out: we went down to the AT & T stadium and stumbled upon a Giants game which was fantastic.
Definitely go to Golden Gate Park and while you're there go to the California Academy of Science