I like finbars in seal beach. papalucci in belmont shore is good, great value. crowded. fora in naples, long beach--expensive. however my fav. italian is parolaccia osteria long beach--great value, crowded.
Not sure what you are looking for, but there is an excellent Italian restaurant in Huntington Beach called Basillico's. It's a small place with only a few tables and there's usually a wait, but it is really good.