Grill Chicken and cut into small bite size cubes and transfer to large bowl with the dressing.
Make sure to blot the cucumber dry as much as possible. You do not want the cucumber juicy as it will water down the salad.
Transfer the cucumbers, tomatoes and green onions to the bowl with the chicken and sauce. Fold mixture together until yogurt is evenly distributed. Fold in feta.
Serve immediately with pita bread, crackers, or over greens.