This Korean vegetarian buffet restaurant in Insadong opens only for lunch. Han Gwa Chae offers various home-cooked Korean dishes. While the menu may vary from day to day, pickled vegetables, tofu and jeon (fried Korean-style pancake) is almost always available. The restaurant asks that you only use one plate, but you are welcome to fill it up as many times as you like. With plenty of options for vegans in Seoul, you could make this a go-to if you’re feeling really hungry.