1- First of all, put your all ingredients on your kitchen container. For filling; Combine chopped pastrami (or Turkish sausage sliced / sausage-sujuk-sucuk/Turkish Sucuk), peppers, tomatoes and cheese in a bowl and mix well, then add the olive oil, salt and ground black pepper and mix all ingredients well.
2- For stuffing: mix the water and olive oil in a bowl. Then, wet the each pastry sheet with water and oil mixture. Then divide each pastry sheet into four quarters, then to eight pie-shaped pieces. Then put a tablespoon of pastrami mixture on the wide end of these pastry pieces and pull up the sides and roll (roll it up like a fat cigar).
3- For topping: In a bowl crack an egg and beat it well with milk. Then, soak each pastry roll into this batter and then cover with bread crumbs.
4- Then line a baking sheet with parchment paper and place pastries on the oven tray. Then preheat the oven to 180°C (350°F, Gas-4) and bake the pastries in the preheated oven for about 25 - 30 minutes or until golden.
5- (If you want you can fry them instead of baking them. For frying: Heat sunflower oil in a wide pan on medium-high heat and fry each pastry/borek on both sides. Remove from the pan when the pastries/boreks turn red and crispy and place on kitchen towel to rid excess oil).
6- Serve warm as a side dish (mezze) spread, weekend brunch or a tasty snack.
Enjoy!