1To make salsa, in large bowl, mix beans, olives, bell peppers, tomatoes, onion, parsley and 1 cup of the dressing until well blended. Cover and refrigerate 1 hour.
2Heat coals or gas grill for direct heat. Brush chicken with remaining 1/4 cup dressing.
3Cover and grill chicken over medium heat 15 to 20 minutes, turning and brushing with dressing occasionally, until juice of chicken is clear when center of thickest part is cut (170°F). Serve chicken with salsa.