Peel and finely chop the onion. Heat the fat in a pot and fry the onion cubes in it until transparent. Add spinach and 100 ml water and let thaw covered for 15 minutes. Heat the oil in 2 frying pans and fry the potato pancakes in it until golden brown.
Season spinach with salt, pepper and nutmeg. Arrange spinach and potato pancakes on plates. Fry the eggs in the frying fat, place them on the buffers and sprinkle with spiced pepper. Garnish with tomato and parsley if desired.