Melt your butter in a large dutch oven or a stock pot over medium heat.
Add in the veggies (carrots, celery, onions, & garlic) and sauté until soft, 3-4 minutes.
Stir in the broth, beans, turkey leftover, bay leaf, and all seasonings. If you have any leftover gravy, you can add it to your soup.
Bring your soup to a boil, then reduce heat and allow it to low simmer for about 20 minutes.
Taste and adjust the seasonings if desired.
Remove bay leaf.
Serve your soup hot and garnish with fresh thyme and freshly ground black pepper.
Enjoy!