The book Growing vegetables in Hawaii by Oshiro is really helpful. If you are at sea level, you'll be growing different veggies than what I grow at 3,000 ft.
I will suggest chayote squash if you have room for it. Easy to let it climb a fence in the corner of a yard. It pays to check with friends and neighbors in your area to see what performs well for them. If you could grab some sweet potato vine free from a friend, or some dry land taro...those are the sorts of things you can try growing without paying $ for them at the store.
Romaine is a nice lettuce to grow. I love manoa lettuce but the romaine grows largest with smooth leaves. Cherry tomatoes are easier than all other varieties. Our acidic soils lack calcium. If you don't provide enough calcium building blocks for your tomato plants the fruits will have black spots at the bottom as they turn from green to red.
Pepper plants are happy in the heat. Hawaiian chili, Thai dragon, Serrano, bell, etc
Many plants can be planted deeper after seeking stage.
Also don't forget you can take the pineapple crown that you slice off the store bought fruit and plant that right into the soil. It takes a long time (2 years?) till it grows to bear fruit, but if you have the space it can be amusing to try.