In a bowl, mix the flour, salt, olive oil, and around 300 ml of water. Use your hands to knead the mixture until you have a smooth, non-sticky dough, which should take about 10 minutes.
Spread the fillings on one half of the rolled-out dough, leaving some space around the edges.
Brush the edge with a little water, then fold the other half over the fillings and press the edges down firmly.
Heat a non-stick frying pan and bake the gözleme for about 5 minutes on each side without adding any fat.
Once done, remove the gözleme from the pan and brush both sides with melted butter.