1. Heat a Dutch oven over medium-high heat; coat with cooking spray. Add onion and bell pepper; coat with cooking spray. Sauté 3 minutes.
2. Stir in sweet potato and next 6 ingredients. Cover and bring to a boil; reduce heat, and simmer, covered, 40 minutes, stirring occasionally. Ladle soup into individual bowls; sprinkle with chopped peanuts.
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