Wash spinach well, remove roots and hard stems. Cut it into pieces,
put salt and rub it hard with your fingers to remove the water and
turn it into a spinach lump which you drain well. Cut the onions
finely and mix them with the spinach adding to the mix the nutmeg, the
pepper and half the oil.
Coat a thin layer of oil on the pan, and lay most of the sheets of
fillo dough coated with oil. Spread the spinach mix uniformly over the
fillo dough, and cover with the remaining fillo sheets, coating them
in oil, too. Bake in medium heat for 50-60 min.