Wash the duck, napa cabbage, and enoki mushrooms thoroughly and cut them into bite-sized pieces.
Slice the onion and green onion thinly.
Place the duck meat on the bottom of a pan and season with salt and pepper.
Layer napa cabbage, enoki mushrooms, onion, and green onion on top in order.
Evenly pour 50ml of water, soy sauce, and minced garlic over the ingredients.
Cover with a lid and steam over medium-low heat for 10–15 minutes.
When the ingredients are cooked, sprinkle with sesame seeds to finish.