Whip the eggs. Add the feta cheese. Mix the yoghurt with the baking soda, stir until effervescent and mix with the rest.
Lastly, add the oil (if you love a greasy pie, you can add more - and vice versa) and mix well. Crumble the phyllo pastry in a greased baking dish.
Arrange by placing a layer of phyllo pastry pieces, then a layer of mixture. Alternate between these until you run out of ingredients. Once done, use a fork to spread the mixture everywhere.
Bake in a preheated oven - first on the bottom element and once it swells, turn both elements on. Bake for no more than 40 minutes.