Preheat grill for high heat. Thread the chicken, sausage, green bell pepper, onion pieces onto skewers alternately. Season with salt and black pepper. Lightly oil the grill grate. Place kabobs on the prepared grill, and brush with italian dressing (you can marinade chicken in italian dressing for 1 hour). Cook, turning frequently, for 15 minutes, or until chicken juices run clear.