Pre-heat the oven to 200°C/400°F/ Gas Mark 6
Wrap the pitta breads in foil and place in the oven for 5 minutes to warm through.
Meanwhile chop the chicken breast slices into small pieces and add to a bowl. Then take the rest of the ingredients and add to the bowl and mix together.
Take the pitta breads out of the oven and cut them in half, gently making a pocket. Stuff them with the chicken salad mixture and serve.