Make the dough: combine the flour, water, salt, milk powder, olive oil, and wheat starch in a large bowl, mixing to form a soft dough. Add more or less water as needed. Brush the dough with a little olive oil, then cover it with plastic wrap and let rest for 10 to 15 minutes.
While the dough is resting, make the filling: warm the oil in a large skillet set over medium-high heat. Add the