Wash vegetables and eggs. Wash the chicken fillet and dry it with a paper towel.
Cut the chicken breast into long strips 1 cm wide.
Cut the cucumbers into thin slices, cut the tomatoes into half rings.
Grate the cheese on a coarse grater.
Prepare the chicken batter. To do this, break the egg into a bowl. Add spices, salt and pepper to it. Dip chicken pieces into egg mixture.
Place breadcrumbs on a flat plate. Roll the chicken in breadcrumbs. Heat a deep frying pan with plenty of sunflower oil and dip the strips into the oil for 2-3 minutes so that the oil covers them completely.
Place the finished strips on a paper towel and blot to remove excess oil.
Now prepare the omelette: break the remaining 2 eggs into a bowl. Mix them with salt and pepper. Heat another frying pan with vegetable oil. Pour in the eggs and fry them on both sides for 3-4 minutes.
Prepare the sauce: mix ketchup, mayonnaise, sour cream and mustard in a bowl.
Assemble the roll. Place the pita bread on a flat surface, spread the sauce on half the pita sheet, and place the chicken strips and cheese on the other.
Place the omelette on the chicken and the vegetables on top.