When we go to Hawaii we’ll pack a small cooler with pound of butter and cheese, snacks, nuts, coffee, ziplock bags. Things we know we’ll need and already have and Hawaiian grocery stores are expensive. If you’re checking a bag it’s easy.
I’ve packed 10 pounds of frozen salmon we’ve caught to take it to the Midwest too. It’ll save you a few dollars if you don’t want to buy every little thing for a week or two.