Wash the brisket, napa cabbage, mung bean sprouts, and enoki mushrooms thoroughly.
Cut the napa cabbage into bite-sized pieces and slice the brisket appropriately.
Layer napa cabbage, mung bean sprouts, and enoki mushrooms in a steamer, creating even layers.
Spread the brisket evenly over the other ingredients.
Season with salt and pepper.
Pour water into the steamer and steam over high heat for 10 minutes.
Make a sauce with soy sauce, minced garlic, sesame oil, and vinegar to serve alongside.