Spanakopita dough is a type of pastry dough made from FILO (also known as phyllo) dough. It is a thin, unleavened dough that is used to make traditional Greek dishes such as spanakopita, a savory pastry filled with spinach and feta cheese. FILO dough is made from flour, water, and oil, and is often layered with butter or olive oil to create a flaky texture. Spanakopita dough is usually baked in the oven until golden brown and crispy.