Soak the beans overnight in water, or according to package directions. Drain and rinse.
To a very large saucepan or stock pot, add the beans with 10 cups of water. Then stir in the seasoning packet, the diced tomatoes, the onion, green peppers and celery plus the garlic cloves and bay leaves.
Stir in the turkey and sausage slices.
Bring to a boil, then cover and reduce heat to medium-low. Cook covered for about 2 hours, or until all the beans are soft.Season with salt and pepper before serving.
Serve Cajun Turkey & Andouille 15 Bean Soup.
Freeze any leftover soup by cooling completely and then adding to resealable plastic baggies or plastic container.