Preheat grill or grill pan. Season chicken with salt and pepper and grill 4-6 minutes on each side or until an internal temperature of 160 degrees is reached. Dice chicken once cooked
Cook the tortellini according to package directions. Once cooked, rinse under cool water to cool, drain well and add to a large bowl. Add the cucumber, tomatoes, peppers, mozzarella, parsley, and diced chicken.
Whisk all the ingredients for the dressing in a bowl and pour over the tortellini.
Season with salt and pepper to taste. Serve with crusty bread.