2/3 cup fat-free milk
1-2/3 cups reduced-fat biscuit/baking mix
1/8 tsp. pepper
1/2 tsp. poultry seasoning
3 cups cubed cooked chicken breast
3 cans (14-1/2 ounces each) reduced-sodium chicken broth
2 medium carrots, sliced
3 celery ribs, chopped