There are many service areas in Liaoning that can provide catering services. The following are some service areas that can provide catering services:

* Jing Quan Service Area: Located in Pulandian District, Dalian, Liaoning Province, it is the first commercial complex in Northeast China, integrating catering, shopping, leisure and entertainment, and is known as "the first service area in China".

* Changtu Service Area: Located in Changtu County, Liaoning Province, it is a fully-functional leisure station providing catering and rest services.

* Ganquan Service Area: Located in qianshan district, Anshan City, Liaoning Province, it provides local specialties such as "Haicheng Pie".

* Xingcheng Service Area: Located in Xingcheng City, Liaoning Province, it provides catering services combining Chinese and Western styles.

All the above service areas can provide different kinds of catering services to meet the needs of passengers. Which service area to choose can be decided according to your itinerary and preferences.