Creamy Turkey Ragout

Name: Creamy Turkey Ragout
Yield: 4
Ingredients: 1 tbsp (15 ml) butter or margarine; 1 stalk celery, chopped; 1 small carrot, finely diced; 1 small onion, chopped; 1 1/2 cups (375 ml) water; 2 packages (25 g) gravy mix for turkey (club house); 2 1/2 cups (625 ml) cubed, cooked turkey; 1/2 cup (125 ml) milk