Preheat the oven to 200'C.
Roast the chicken breasts in the oven for 15 minutes or until cooked through. Allow to cool and then cut into thin slices.
Peel the cucumber, remove the seeds and cut into small dice.
Drain the sweet corn.
Mix the cucumber with the yogurt, sweetcorn and chicken.
Cut the pitta breads in half and fill with the chicken and sweet corn mix.
«For a super fast lunch box filler use ham or tuna instead of the roast chicken.»