Chicken Dumplings

Ingredients 1 medium onion 1 can (10.05 oz) cream of celery soup 1 can( 10.05 oz) cream of chicken soup 1 Tbsp. fresh Parsley 1 tsp poultry seasoning 1/4 tsp salt 1/4 tsp pepper 2 Skinless boneless chicken breast 3 cups low sodium chicken broth 2 1/2 cup frozen mix vegetable 1 can refrigerated biscuits