Place the yogurt, the corn oil and the self rising flour in a large bowl and mix until you have a nice dough. Set it aside for 30'.

Crumble the feta cheese and add a little pepper. Brush a baking tray with margarine (or butter).

When the dough is ready, roll out small filo sheets, fill them with feta cheese and seal the edges shut by pressing them.

Preheat the oven to 180°C for 15' and bake for 20′-25′.