I can't believe no one on this board has mentioned the Olive Tree in Kahala for AMAZING low priced mediterranean food.
It is a little cafe behind the Kahala Mall. Dishes are from $5 -$9 and worth much much more. I can never decide between the Falafel Sandwich and the Chicken Souvlaki Sandwich - although I ordered the nightly special once of roasted eggplant and couldn't believe I had ever ordered anything else. They also have Pomegranate juice - tart, tangy and dry. mmmmmm.
i highly recommend this place to anyone. I don't live in Honolulu any more, but I would die to go there tonight.