Cut the rice cakes and fish cakes into bite-sized pieces.
Pour 400ml of water into a pot and add Shin Ramyun soup base and powder seasoning. Bring to a boil.
Add the rice cakes, fish cakes, and Shin Ramyun noodles. Boil for 3 minutes.
When the noodles are almost cooked, add cheddar cheese and mozzarella cheese.
Simmer over medium-low heat for 1-2 more minutes until the cheese melts.
Transfer to a bowl and garnish with parsley or green onions.