Stir cumin in heavy medium saucepan over medium heat 30 seconds. Add pumpkin, beans, coconut milk, broth and 3 tablespoons cilantro. Bring soup to boil, stirring constantly. Reduce heat to medium-low and simmer 3 minutes to blend flavors. Mix in lime juice and lime peel. Season soup with salt and pepper.
Ladle soup into bowls. Sprinkle with remaining 1 tablespoon cilantro.
Per serving: 673 Calories (kcal); 3g Total Fat; (4% calories from fat); 42g Protein; 123g Carbohydrate; 0mg Cholesterol; 15mg Sodium Food Exchanges: 8 Grain(Starch); 2 1/2 Lean Meat; 0 Vegetable; 0 Fruit; 0 Fat; 0 Other Carbohydrates