HEAT oil in large saucepan over medium heat. Add white and light green parts of green onions, bell pepper and garlic; cook, stirring occasionally, for 4 to 5 minutes or until soft. Stir in cumin and thyme; cook, stirring occasionally, for 1 minute. Add beans, pumpkin, tomatoes and juice, broth and water; bring to a boil. Reduce heat to low; cook for 10 minutes. Stir in salt and cayenne pepper. Top each serving with dark green onion tops.