Marinade chicken in olive oil and salt
Heat oil in large fry pan and cook chicken until each side is golden. Place in slow cooker
Add onion, celery, tomato paste, pasasta, stock, vinegar and rosemary to slow cooker. Cover and cook on high for 3-4 hours until chicken is tender.
Add olives and top with basil
Serve with pasta or mash and, a side of greens