# Prepare the filling mixture at first: grate the 
tomatoes. Chop the 
onions, 
peppers and parsley finely.
# Put this prepared mixture into a deep bowl. Add 
tomato paste, vegetable oil, salt, black 
pepper and water on it and knead the mixture.
# Meanwhile, mix the 
milk with egg and vegetable oil in a separate bowl.
# Place grease-proof paper over the baking tray. Place the yufkas into the tray, by spreading 
milky mixture between each of the yufka layers.
# Lay the prepared filling mixture over the yufkas in the tray smoothly.
# Bake the borek in the oven, which is preheated to 374 F, for about 30-35 minutes.
# After removing the borek from the oven and it turns into tepid, roll it by the help of the paper under it. 
# When it cools down totally, slice it into pieces each has 1 inch thickness, and serve it.