– Spray the slow cooker with nonstick spray. Place chicken breasts in the bottom of the slow cooker. Top with the diced onion, then sprinkle with salt and pepper.
– In a medium bowl, combine cream of chicken soup, cream of celery soup, parsley, poultry seasoning, and garlic powder. Spread over the chicken and onions.
– Open the biscuits and cut each biscuit into 8-10 pieces. Add biscuits to a bowl with 1/2 cup of all purpose flour and stir gently to coat each piece with the flour.
– Add biscuits to the crockpot, stirring to make sure the biscuits are pressed into the liquid.