There are many chinese foods in Isla Vista such as Hana Kitchen, but they are not authentic. Most of them are just fast food.

China Pavilion is a great chinese restaurant in Santa Barbara DownTown.
Raising the bar in Chinese dining, China Pavilion provides quality Chinese cuisine with a fine dining experience. Besides the more common dishes, They provide authentic plates, and they provide English menu (also in Chinese). People also can have a great brunch in there, come in for dim sum. This restaurant will help you approach Chinese culture.

Restaurant Hours: Monday - Sunday Lunch 11:30 - 15:00 Monday - Sunday Dinner 17:00 - 22:00
Dim Sum: Saturday and Sunday 11:00 - 15:00

Wish you can enjoy it in a great dinner time.