For the spread mixture; melt the butter and mix with the 100 milliliters of liquid oil. Set aside, this will be used on the phyllo sheets/yufka.
For the stuffing; separate the pastrami one by one as they might have sticked to one another. Make sure you discard the chemen. Chemen is the coat of the pastrami made of cumin seeds, red pepper and garlic. It is better to separate and consume elsewhere as the chemen is extra spicy and will dominate this borek too much. Cut the pastrami to julienne slices.
Peel and cut to small cubes the tomato and add to the pastrami.
Wash, discard the seeds and then cut julienne the red and green peppers. Add to pastrami.
Grate the cheese on the coarse side of the grater or finely chop and add to the pastrami. Mix all together gently and set aside.
If using a round large yufka, open the yufka wide in a working space. Grease generously with the butter spread mixture. Fold the corners inside and grease the folded sides too. You will have obtained a square shape. Then cut into half horizontally.
On the longer side put ¼’th of the stuffing material in a line and roll as a large cigar. Then depending on the length cut diagonally to 3 or 4.
Do the same with the other half.
Do the same with the other yufka.
Whisk the eggs in a rectangular bowl.
Put the bread crumbs in a rectangular bowl.
Soak each borek piece first into the egg mix and then to the bread crumbs.
Use a non-stick oven liner; if not available grease the oven tray.
Place all the borek pieces side by side, but not touching each other.
Cook in a pre-heated oven at 200° Celsius for about 20 minutes. All sides should be brownish and crispy.