Serve this chunky salad with pita wedges or pita chips. Purchase pita chips or make your own by spraying pita wedges with cooking spray, sprinkling them with a little shredded Parmesan cheese, and baking them at 400° for about 10 minutes.
Combine first 5 ingredients in a large bowl. Combine mayonnaise and next 5 ingredients (through pepper) in a small bowl, stirring with a whisk. Add mayonnaise mixture to chicken mixture; stir until combined.
Place 1 lettuce leaf on each of 4 plates; top each leaf with about 1 cup chicken mixture. Place 8 pita wedges on each serving.