store bought roasted chickens (2) • Vegetable oil • Chopped onion, Ready Pac • Carrot sticks, chopped Ready Pac • Celery sticks, chopped Ready Pac • Chicken broth (6 cans) • poultry seasoning • Salt • ground black pepper • flour for dusting • Pillsbury Grands buttermilk biscuit dough (16.3 oz) • Campbell's condensed chicken gravy (10.5 oz)