Set a large stock pot over medium heat. Add olive oil, carrot, onion, celery, garlic, bay leaf, thyme leaves and gently saute until fragrant, about 5 to 7 minutes. Pour in chicken broth, add parsley and black peppercorns. Bring to a boil then reduce heat to simmer while you work on turkey sausage and tortellini.

Cook turkey sausage as directed on package. Drain sausages and cut into bite-size pieces. Drop tortellini into soup. Cook until they float and are tender. Once turkey is finished, add to pot of broth. Bring to a simmer and cook for 2 or 3 minutes. Give soup a final seasoning and serve in bowls with a sprinkle of Parmesan and parsley.