Place one triangle of yufka dough on a work surface with the longer edge facing you, and brush with the milk-oil mixture generously.
Place 1-2 tablespoons of the filling near the wide end of the triangle, leaving about 1-inch (2cm) border on each side. Fold the long sides of the dough slightly over the filling. Fold in the sides to seal and roll up tight. Then place on a baking tray and repeat with the rest of the dough and filling.
Brush the spinach rolls with the milk-oil mixture and sprinkle with sesame seeds. Bake in a preheated oven at 360°F (180°C) for about 15 minutes, or until golden brown and crispy. (Optionally, you can also go the traditional way and fry them crispy in a deep-fryer or in a pan with much oil).