I 've just returned, so am a little tired and lazy, but here goes.
In Manoa valley, two BBQ spots. One called Ducky's and one called Bo's. Both good across the board.
Irifune is a great restaurant. It is fresh, fun, casual, and inexpensive. It is often crowded, but we only waited about 15 minutes eating with two babies in high chairs. Their garlic ahi is what they are known for, but the tempura, sashimi, and mahi stir-fry were all great. The desserts were great too. Fried banana with iced cream or something like that.
Down the road from Irifune is the Waiolo (sp?) bakery and shave ice. It was recommended for the shave ice, but the bakery is what kept me coming back. Loaves of bread with taro filling or azuki fillings. Butter rolls that kept me thinking of them allday. Baked rolls with a custard filling were decadent and delicious. What a way to start the day.
Good food was harder to come by on Kauai. I have only two unqualified recommendations. At Anini beach on the North Shore, there is a fish taco truck that makes delicious fresh tacos and burritos that I went back to three times. It is only open in the afternoon.
The best shave Ice we had in the islands was at a truck in Hanalei bay. I had pineapple ice with macedamia nut ice cream. My wife had coconut ice with Kona coffee ice cream. Delicious.
The Lighthouse Bistro in Kilauea was overpriced but pretty nice (great scallop appetizer). The Mexican place in Hanalei Bay was good, a beautiful place to sit, and friendly but unpleasantly slow service.
That's all for now.