i think the places you're referring to are places like Young King, which are korean-chinese restaurants (basically chinese people in korean who adapted some northern chinese dishes to korean tastes)....they're good if you like korean-chinese. I generally think its pretty tasty
if you look up posts on korean chinese, you'll find alot of posts on the subject
fyi, the typical dishes are:
- ja jang myun: which is a noodle dish with a thick brown sauce with beef and onions
- gang poongi: its like a spicy fried garlic chicken
- jjam bbong: a spicy seafood noodle soup
- tang su yook: sweet and sour beef
That pretty much nails it. Aside from these specialties, if you order what might otherwise be your regular Chinese restaurant favorites, it's just another version of "unauthentic" Chinese food, such as Americanized Chinese food, Indian style Chinese food, etc. Another caution is a lot of the Korean Chinese restaurants are extremely expensive, presumably catering to free spending Korean business people.