In a large saucepan, pour in the turkey stock and set over medium heat.
Add the bay leaf, diced carrots, chopped onion, diced celery, and minced garlic to the saucepan. Season with salt and freshly ground black pepper to taste.
Bring the mixture to a simmer and cook for about 10-15 minutes, or until the vegetables are tender.
Stir in the chopped parsley, egg noodles, and shredded leftover turkey. Continue to cook according to the egg noodle package instructions, usually about 5 minutes, until the noodles are tender.
Once cooked, remove the saucepan from heat, discard the bay leaf, and adjust seasoning if necessary.
Ladle the soup into bowls and serve warm.