welcome to DC.
In sticking with a Hawaiian theme, and having lived in Hawaii, straight up scoop of sticky rice, with a little Nori powder/sushi seasoning on top. For veg, Sky is the limit. A lot of authentic Hawaiian dishes(not saying that Pineapple steaks are traditional) don't monkey with a veg, it is very starch heavy diet when it comes to sides, even the Poi.
The suggestion of a pepper mix would make the most sense, just going off the sweetness.