Kahunaville Island was our rendez-vous for the Las Vegas Club Crawl. We only had drinks there so my review won't be about the food although, upon quickly browsing through their menu; I will say that they offer seafood, steak, salads, burgers and you can expect a meal to set you back at least $20.
You'll find Kahunaville in Treasure Island and I have to say that I like the place. They've got TV screens on the walls and on top of the bar so you can hang out and watch a bit of well, whatever they're showing. The bartenders on the night were really nice and the drinks are fairly priced as well.
It is a very chilled out place w/ a hawaiian decor and ambience. They also offer a broad range of tropical/island inspired cocktails.
I will definitely grab some food there next time I'm in Vegas.