reception for 12 in la jolla
night before a beach wedding, open as far as cuisine goes. not too far from La Valencia would be great. wedding dinner looks like a seafood/steak place.
George's is a great suggestion. I would also consider La Valencia itself. Chef Daniel Barron is very talented and enthusiastic, I'm sure he would be open to creating a great menu for your party based on the group's preferences. I would recommend eating on one of the outdoor patios (the back patio if it is a warm night, or front patio has plenty of heat lamps and ambiance on a cooler evening.
George's at the Cove
Manhattans of LJ
Marine Room for drinks before sunset is great with high tide, waves splashing on the floor to ceiling glass.
Have fun in LJ..