When the dough has doubled in size, divide it into 12 equal pieces and shape them into balls. They should roughly weigh 55 grams each.
Cover them with a clean kitchen towel and let them rest for another 15 minutes.
Preheat your oven to 200°C (390°F).
Line two large baking sheets with parchment paper.
If you want to make boat shaped fatayer, take a one dough ball and thinly roll it into a small oval shape.
Place 1 ½ tablespoons of the cheese or spinach filling in the center of the dough.
Fold the sides of the dough over the filling, leaving the center exposed. Pinch the ends to create a boat shape.
Place the shaped fatayer on a prepared baking sheet.
Repeat with the remaining dough balls.
If you want to make triangle-shaped fatayers, take one dough ball and roll it out into a thin circle with a diameter of 6" (15 cm).
Place 1 ½ tablespoons of the cheese or spinach filling onto one half of the dough circle.
Lift two sides of the dough and bring them together at the top, a bit to the side. This creates a point like a triangle.
Pinch the top part to seal the filling inside.
Fold up the remaining side to finish the triangle shape.
Pinch all sides of the triangle to make sure it's closed tight.
Put the shaped triangle fatayer on the baking sheet, repeat until you run out of dough balls.