It's mostly L&L, although they're not very good compared to the on-island franchises and are starting to fail (the one on Auburn Blvd shut down last month). There was another place on Madison Ave that closed a couple of months ago, so if you see any reference to that, ignore it. If you're all the way down in Elk Grove there's Hawai'ian Style Grill. I've only eaten there once, but it was decent. And I've seen a sign for another place (Ono Loa?) on Howe, but have never been there.