If you are transit in Hong Kong airport and looking for Chinese cuisine, then Pak Loh Chiu is your choice.
Quite a pricey restaurant, it cost about HKD 350 with few dishes as below.
Shrimp wonton noodle + fresh vegetable + fish ball soup (forgot taken photo) + pepper salt fish + shrimp dumpling (虾饺) + 1 pot of tea
百樂潮州酒家@Pak Loh Chiu Chow Restaurant have a few branches in Hong Kong, one of the popular restaurant for Teo Chew cuisine.
For the airport location, here it is. Unit 7E142, 7/F, Departure East Hall, Hong Kong International Airport, Hong Kong