Kale Butternut Squash Turkey Soup

Name: Kale Butternut Squash Turkey Soup
Ingredients: 1 large onion, finely chopped; 2 celery sticks, finely chopped; 3 garlic cloves, minced; 1 1/2 pounds butternut squash, chopped into 1 inch pieces; 1 1/2 pounds potatoes, chopped into 1 inch pieces; 15-20 sage leaves, about 3 tablespoons chopped; 7 leaves thyme, about 1 tablespoon; 1 1/2 teaspoons salt; 1 teaspoon pepper; 6 cups turkey stock or chicken stock; 4 cups kale, stems removed; 1 1/2 pounds cooked turkey meat, cubed (or roaster chicken meat, cubed)