From the previous night mix in a medium bowl all the spices (keep aside ½ of the paprika) with 1 teaspoon of Salt and ½ teaspoon of Pepper and 4 tablespoons of oil. Add the chicken, toss and cover with plastic wrap and refrigerate.
Preheat the oven to 190 degrees C, air circulation, rack in the middle.
In a large rectangular non-stick oven dish add the chicken and cook for 20 minutes, tossing the chicken halfway through. Remove from the oven and let slightly cool.
On a carving board spread the chicken and thinly slice each piece.
Set a large saucepan over high heat and let it heat up for a minute. Add 2 tablespoons of oil to the pan and let this heat up for 1 minute. Add the chicken and sauté, tossing frequently until nicely browned and slightly crispy
In the meantime, add in a small bowl, lemon juice and zest, the rest of the oil, 2 tablespoons, the mint, ½ of salt and the yoghurt and mix well. Place in a jar and keep aside.
To serve take a pitta and add to the middle 4 tablespoons of the chicken and top with 4 pieces of tomatoes, a tablespoon of cucumbers, few onions, some parsley and a tablespoon of the yoghurt sauce. Wrap the pitta bread tightly and wrap with parchment paper and aluminium foil. On the opening of the wrap add some more yoghurt sauce, sprinkle some paprika and add some parsley.