Let's steam whatever we have.
Wash the napa cabbage thoroughly and cut it into bite-sized pieces.
Cut the tofu into pieces of a suitable size for eating.
Slice the chicken breast thinly and season with salt and pepper.
Beat the eggs and set aside.
Layer napa cabbage, tofu, and chicken breast in the steamer in order.
Pour the beaten eggs evenly over the ingredients.
Steam over low heat for about 15 minutes.