Wash the spring cabbage thoroughly and cut it into bite-sized pieces.
Chop the green onion and garlic.
Make the seasoning sauce by mixing red pepper powder, soy sauce, vinegar, sugar, minced garlic, sesame oil, and sesame seeds.
Put the spring cabbage, seasoning sauce, and green onion in a bowl and mix well.
Transfer to a plate and sprinkle with sesame seeds.