"Vegged-Out" Pumpkin & Black Bean Soup

5 green onions (white and light green parts), thinly sliced (slice dark parts and set aside for later)

1 red bell pepper, chopped

3 cloves garlic, chopped

1 1/2 teaspoons ground cumin

1/2 teaspoon dried thyme

2 (15-ounce) cans black beans, rinsed and drained

1 (15-ounce) can LIBBY'S 100% Pure Pumpkin

1 (14 1/2-ounce) can no-salt added diced tomatoes, undrained

1 (14-ounce) can vegetable broth

1/2 cup water

1/2 teaspoon salt or more to taste

1/8 teaspoon cayenne pepper or more to taste