125 ml (half a cup) of milk
125ml (3/5 cup) vegetable oil
2 tablespoons of water
1 teaspoon of salt
3 rolls of filo dough
1 egg yolk
Mix eggs, milk, oil, water and salt in a bowl.
Lay out a sheet of filo dough and pour a little of the mixture, spreading it over the entire sheet. Repeat twice, for a total of 3 layers.
Mix the feta cheese and cooked spinach and spread over the filo dough. Roll from one end to the other to get a strip.
Cut into triangles and place on a baking sheet.
Brush each triangle with egg yolk.
Sprinkle with poppy seeds and bake at 180°C (356°F) for 15 min