Butterfly chicken breasts, one day before cooking. Add a dash of mayo and spice mix, and rub the chicken to coat.
Cut and deseed the avocado. Scoop out the flesh and mash with lime juice and salt.
Wash and cut tomatoes. Mix with diced shallot, lime juice, salt and pepper.
Mix together ingredients for ranch yogurt sauce.
Refrigerate the above ingredients overnight.
On the day of cooking, sear chicken breasts in a pan with a bit of oil and reserve.
Wash and cut up fajita vegetables. Stir fry vegetables in the same pan until desired doneness, salting lightly.
Warm up flatbread in a low oven for several minutes. Leave it in the switched-off oven until ready to serve.
Once vegetables are done, cut chicken into small pieces. Set the table, assemble and serve.