Chicken Sweet Potato Soup

Name: Chicken Sweet Potato Soup
Prep time: 20 min
Cook time: 4 h
Total time: 4 h 20 min
Cuisine: American
Ingredients: Cooking spray; 1-1/2 pounds boneless, skinless chicken breasts (or thighs, 24 ounces); 1 cup quinoa; 3-1/2 cups diced sweet potatoes (2 to 3 large sweet potatoes); 1 (15.25-ounce) can black beans (drained and rinsed); 1 (14.25-ounce) can fire-roasted diced tomatoes; 1 teaspoon minced garlic; 1 (1.25-ounce) packet chili seasoning mix (see note 1); 5 cups chicken broth (or stock); Fresh cilantro (or parsley, optional); Optional toppings (see note 2)