Cook bacon in a Dutch oven over medium heat until crisp. Remove bacon from pan; crumble. Add onion to drippings in pan; cook 2 minutes, stirring frequently. Add pepper, salt, and greens; cook 2 minutes or until greens begin to wilt, stirring constantly. Stir in bacon, broth, and remaining ingredients. Cover, reduce heat, and simmer 1 hour or until greens are tender.