In equal amounts olive oil and butter, braise the green onions that you've chopped into slices for 5-6 min. covered in a pan on low heat.
Season with a little oregano and leave to cool, while pouring in cold milk as well.
Once the onions are cooled, add the eggs and crumbled feta cheese.
Smear a round tray with olive oil. Take 2 phyllo pastry sheets and smear them with olive oil.
Put filling at one end and wrap the sheets up into a roll. Place the rolls in the tray, starting from the middle and going outward to form a spiral.
Continue in this manner until you run out of sheets and filling.
Bake in a preheated 356°F (180 °C) oven about 40-45 min. until reddened.