With so many Chinese restaurants in the SGV it's foolhardy to choose a single best dish. My personal favorites are simple items like the beef roll at 101 Noodle Express and the dumplings at Qingdao Bread Food. However, on the vegetarian side I just ran into something fabulous at Embassy Kitchen in San Gabriel (once known as Embassy Billiards)--a mixture of bean sprouts, egg whites and imitation shark fin. Has anybody seen this dish anywhere else?
Embassy Kitchen has some other great dishes, including crab fried rice, Chinese broccoli with dried salted halibut bits and egg tofu with bamboo pith. They also have some very ordinary dishes. That probably explains why they're busy, but not overwhelmingly so. Embassy Kitchen is at 218 S. San Gabriel Blvd.
101 Noodle Express
1408 E Valley Blvd, Alhambra, CA 91801
218 S San Gabriel Blvd, San Gabriel, CA 91776
Qingdao Bread Food
301 N Garfield Ave, Monterey Park, CA