Ying Shan Hong is a very small Korean restaurant which, at the time of writing, was open 24 hours. It is very cheap but the food is great and the cleanliness is above average for a small budget restaurant.
This place is located opposite the Jin Ke Long supermarket to the south of Chaoyang Park. You can take the 710, 752, or Mini 3 buses from Da Wang Lu subway station heading north. Or of course, by taxi using the directions at the foot of the page.
You can cook meat kebabs at your table or have them cooked for you. The other thing we strongly recommend here is the Beef Mix Rice (Niu Rou Gai Fan).