What does she like?
Disneyland is a must since you have a little girl. Like some said, the Zoo isn't bad, but San Diego has a much better one (Zoo and Wild Animal Park). Universal could be okay if she likes seeing stage shows and stunt shows.
If she likes astronomy, I would maybe take her to the Griffith Park Observatory (it is near the zoo so you can go in the evening). It is done renovating and is supposedly nice, although you now need tickets. It also gives you an awesome view of the city. It also has a planetarium.
The beach is always a good idea. Depending on where you are staying in SoCal, Santa Monica is good, Newport Beach also, and if you want to see planes from LAX
go right above you, theres Dockweiler Beach.
Also don't foget to visit In-n-Out.
"Look Lois, the two symbols of the Republican Party: an elephant, and a big fat white guy who is threatened by change."