The most famous Korean cuisine is barbecue and bibimbap.
Roast steak, roast beef and roast pork belly are all delicious barbecue.
Bibimbap is famous for bibimbap and spicy cabbage fried rice.
There are also some kimbap, miso soup and so on, depending on your taste.
There are also some high-end Korean dishes, such as Salabar restaurant, which is more expensive and provides more exquisite food.