Place a large non-stick frying pan over high heat. Cook the wraps, 1 at a time, for 1 min each side or until golden and heated through. Transfer to a plate. Cover with foil to keep warm.
Cook the chicken in the pan, in 2 batches, for 4 mins or until the chicken is cooked through. Transfer chicken to a heatproof bowl.
Prepare the salad in a large bowl following packet directions. Divide the wraps among serving plates. Top the wraps with the salad, chicken, avocado and fetta. Season.