Nondescript shopping centers sometimes hold the best secrets, and nestled between a dry cleaner and a nail salon is one of those secrets. I've been eating at Island Teriyaki since high school, and I know that it is still a diet staple for the local high school kids.
Island has several menu options but the basic chicken and rice bowl is the best choice! Like Robert O. says, this is not the place for authentic Asian cuisine. Serving delicious food for very low prices, this is the place for a quick and tasty lunch.
I would steer clear on early release days because the Deer Valley kids (and even the teachers) swarm Island like a plague of locusts.