Slow Cooker Cheesy Broccoli-Potato Soup

Name: Slow Cooker Cheesy Broccoli-Potato Soup
Total time: 10 min
Yield: 4 servings
Ingredients: 4 cups reduced sodium chicken broth; 1 cup yellow onion chopped; 1/2 cup chopped celery; 1/2 cup carrots chopped, optional; 2 cups idaho potatoes unpeeled cubed; 1/2 teaspoon celery seeds; 1/2 teaspoon dried thyme leaves; 2 cups broccoli florets small; 1 cup 2% reduced fat milk; 2 tablespoons cornstarch; 2 cups mild cheddar cheese reduced-fat; salt; freshly ground black pepper