Mr. Passak Seokchon Lake Branch is a fast-food restaurant at Seokchon Lake in Seoul that serves donkatsu, omurice, and eomuk udon. The cheese donkatsu is filled with cheddar, and the Moche Moche donkatsu contains both mozzarella and cheddar. The donkatsu is large, more than half of the cheese donkatsu's interior is cheese, and the jjambbong donkatsu is moderately spicy. Everything is self-service, which makes using the restaurant inconvenient.