Crack and beat the eggs, in a bowl, until the yolks and whites are blended well with no visible strings of whites. Stir in salt. (If using, stir in chopped vegetables.)
When the egg is set but the surface is still wet, add a sheet of gim. Pour the remaining egg over the gim and swirl the pan around to spread the egg mixture evenly.
When the egg surface is set again, using a spatula, lift one end of the egg and fold it over to the other side. Quickly lift the folded part and fold it again.