1Heat coals or gas grill for direct heat. Grill sausages 4 to 6 inches from medium heat 15 to 20 minutes, turning frequently, until no longer pink in center.
2Brush bell pepper pieces with about 2 tablespoons of the dressing. Add to grill for last 10 minutes of cooking time, turning frequently, until crisp-tender.
3Meanwhile, cook and drain pasta as directed on package.
4Cut sausages into 1/2-inch slices; cut bell peppers into 1 1/2-inch pieces. Toss pasta, sausages, bell peppers, tomatoes and remaining dressing. Sprinkle with basil.