Cafe Piccolo Long Beach
I have eaten there a few times with a friend who lived in the neighborhood and liked to celebrate special occassions there (wedding rehearsal dinner, 35th birthday, etc). The food is quite enjoyable, and the atmosphere is really warm and romantic, with low lighting and twinkly lights and a variety of different spaces (e.g., some California garden-like in the rear, and more formal and Italian-feeling toward the front). The staff is friendly, and it has a nice local feel to it.
I tell my guy friends to take their dates here if they want to express "serious interest" because the atmosphere is so lovely and the food is very good. Conversely, don't take anyone there casually, you may get more than you bargained for.
My favorite thing here is the Lamb Zinfandel and their minestrone soup (which is not at all what you think it ought to be, it's better!). I really need more occasions to frequent this place myself, sniff sniff.