To your slow cooker add the chicken, onion, potatoes and mixed vegetables.
In a bowl combine the cream of chicken soup, cream of celery soup, milk, garlic powder, poultry seasoning, onion powder and pepper.
Pour the soup mixture over the chicken and veggies.
Cover and cook on low 6-8 or high for 4 hours.
Thirty minutes before serving remove the chicken, shred and add back into the slow cooker.
Take your biscuits and cut them into pieces and sprinkle over the top of the chicken mixture.
Melt your butter and brush the biscuits.
Cover and cook the remaining 30 minutes or until the biscuit pieces are cooked through.
Garnish with parsley if you like.
Serve!