Finely chop crab meat, onion, and green onion.
Crack the eggs into a bowl and season with salt and pepper.
Add milk to the eggs and mix well.
Add the chopped ingredients and cheese to the egg mixture and combine.
Pour the mixture into a preheated earthenware pot.
Cover and steam over medium-low heat for 10 minutes.
Once cooked, sprinkle green onion and cheese on top to finish.