There is a wonderful Chinese food restaurant on Fremont Street, just as you come off of East bound Highway 1. The food is great and the portions are huge. Other than that, almost anywhere on the wharf is good but can be pricey.
Tarpy's Roadhouse, Montrio Bistro, RG Burger
Bistro Christine is fantastic (if a little spendy). Great French food, great personality. Get the lemon desert.