Fast food

When I visit different states, I love to try regional fast food. For example, in n out in California, whataburger in Texas, taco king in Alaska (lol)

What’s the regional fast food in Hawaii? I think I’m gonna check out zippy’s, but open to other suggestions.

Ps. Yes I will try local food, but I love to try a chain every time I visit a new state.

Edit: no fast food from the mainland please. No l&l and no jollibees