
In theory, lunch at the COEX food court (there are two) is intriguing.
Imagine your standard Korean restaurant in America. The menu has section sfor grilled meats, stews, casseroles, hot pots, hot and cold noodle dishes, etc. Each station in the food court here specializes in one of those sections, or perhaps even just an individual dish. You don't have to stand around waiting for your food. You can sit at your table and wait for your number to show up on the "now serving" display.
I walked up and down the long row of counters at least twice. And unlike the sullen staff in the food court in Washington DC's Union Station, the staff will call out to you to buy their food. It's sort of like walking down Little Italy or Little India in New York, but less obnoxious.

This is a $5 lunch. Blood sausage soup, a bowl of rice, and an array of ban chan. The sausage had too many noodles, so much as to make the texture unpleasant. Kimchee for lunch? No problem! Does the water cup look familiar? I suppose my insane tendency for consistency is genetic.

Another $5 lunch. It's some sort of pan-Asian fusion fried rice thing, rather forgettable.
When you're done with your meal you're expected to return your tray and dishes back to the counter from which you purchased it. Notice that the utensils here are metal. There's surprisingly very little disposable waste in comparison to an American food court.
I guess it's not surprising to find that mall food, even half a world away, is still disappointing.