Heat the oven to 180C/160C fan/gas 4. Sprinkle the flatbreads with a little water and heat in the oven for 4-5 mins until soft and warm, then set aside to cool slightly.
Combine all the dressing ingredients in a large bowl and season to taste. Mix in all the salad ingredients, tossing well to coat in the dressing, then arrange on top of the flatbreads to serve.