In a Dutch oven, cook bacon over medium heat until crisp, stirring occasionally. Remove with a slotted spoon; drain on paper towels. Discard drippings, reserving 1/4 cup in pan. Add celery, onion, carrot, red onion and bay leaf; cook and stir over medium-high heat until vegetables are tender, 8-10 minutes., Stir in flour until blended; gradually whisk in stock. Bring to a boil, stirring constantly; cook and stir 2 minutes. Add soup, cream cheese, milk and cream; mix well. Stir in corn, turkey, hash browns, gravy, parsley and 3/4 cup reserved bacon; reduce heat. Cook, covered, 20 minutes, stirring occasionally., Discard bay leaf. Serve with remaining bacon and, if desired, green onions.