Crack the eggs into a bowl and beat well.
Add salt and chopped green onion to the eggs and mix.
Add water (or kelp broth) to the egg mixture and stir well.
Strain the mixture to make it smooth.
Pour the egg mixture into an earthenware pot or saucepan and cook over low heat.
Stir gently with a spatula as it cooks.
When it's about half set, cover with a lid and let it finish steaming.