Slow Cooker Tuscan Sausage and Bean Soup

turkey sausage or kielbasa, cut into 1/4-inch thick rounds

garlic, minced

onion, chopped

medium carrot, peeled and chopped

celery stalk, chopped

medium bunch kale, chopped (about 4 cups)

fat-free low-sodium chicken broth

red kidney beans, rinsed and drained

great Northern beans, rinsed and drained

Italian seasoned diced tomatoes

water

dried basil