Healthy Chicken Stroganoff Soup is probably the most delicious soup I've made all season long. (Well, it's at least right in line with Creamy Chicken Noodle Soup and this Cheesy Chicken Tortilla Soup with Tortellini.) Packed with hearty mushrooms, flavorful chicken meatballs, and a stroganoff-flavored broth, this soup will keep you warm and happy all winter long.