I ran across a couple of Hawaiian places while perusing the OC Weekly archives of reviews by Gustavo Arellano. These two places are slightly out of my driving distance for lunchtime ventures, but might attempt to visit if I can spare an hour-and-a-half lunchbreak on a particular day.
Matiki Island Barbeque
3070 W. Lincoln Ave.
1204 E. Orangethorpe Ave.,
Any dining experiences at either place would be appreciated.