In a mixing bowl add flour, yeast, sugar, salt and mix well. Add oil, yogurt, water and mix well to form a dough.
Knead the dough until soft and non-sticky. Cover the bowl with a damp cloth and rest for 30 minutes or until dough doubles.
To make the filling, combine spinach, feta, cumin powder, red chilly flakes, salt and pepper in large bowl and mix well.
Once the dough doubles, punch the dough and knead again. Divide into 6 pieces and roll into balls.
On a lightly floured surface, roll each ball with a rolling pin as thin as possible. Now fold the left and right so that it forms a rectangular shape.
Place about 3 tbsp filling in the middle and fold the top and bottom sides over the filling, making sure the filling is covered well. Gently press the edges to seal.
Heat a griddle or pan and add little olive oil. Once oil is hot, gently place the gözleme and cook in medium heat until both sides are golden brown.