Another vote for Kakao. I eat lunch there 5-7 times every visit to the island and am never disappointed by their specials (recently had an amazing Dover Sole, triggerfish, lobster stew, and goat cheese/proscuitto tart, all as specials). Their pizzas, salads, charcuterie platter, and regular fish dishes are all excellent, too. Given that the quality is similar to what many of the better restaurants serve on the island, for me a lunch at Kakao frequently is my main meal of the day and represents an overall savings on daily food since I save on dinner.