This fat-free, cholesterol-free, low-calorie soup provides major health benefits from the sweet potato, a superfood. Sweet potatoes are a great source of beta-carotene, vitamin A, and healthy carbohydrates.
Bring water to a boil in a large saucepan. Add remaining ingredients. Cover, reduce heat, and simmer 30 minutes. Place half of sweet potato mixture in a blender; process until smooth. Return pureed mixture to saucepan; cook over medium heat until thoroughly heated.