I don't see a lot of reviews for the "farm to table" restaurant Kauai Ono (aka Kauai Ono 560) on this board. Two of the ones from the last year are referencing the truck food.
Recently they switched from being a food truck to doing set dinner menus only 2 evenings a week.
"Rustic & communal in style. An outdoor dining venue with a set menu based on weekly and seasonal availability. Five course dinner $50. BYOB"
Any reviews of the $50 5 course menu? It's only Wednesdays and Thursdays and I believe you must book online.
I see a bit of TripAdvisor chatter but I trust CHers taste way more.