Heat the pan again over medium heat.
Divide the mashed potato mixture into as many parts as you have the flatbreads.
Take one flatbread and spread the mashed potato on half side of the flatbread. i.e. a half circle. Spread the mix as evenly and as thinly as possible.
Flip the other half on top of this like a quesadilla.
Heat a pan and lightly grease it with butter or oil
Shallow fry on the side on slow to medium heat until golden brown or cooked from bottom.
Apply some butter on the top , flip and cook it on the other side too until golden brown.
Repeat the above steps for the remaining flatbread.
Serve Qistibi warm with some tea or sour cream or some tangy chutney.