Colorful pumpkin stew

15 ounces of canned pinto beans (or 2 cups of cooked beans) 15 ounces of canned pumpkin puree (or 2 cups of cooked, ground squash) 15 ounces of canned chickpeas (or 2 cups of cooked chickpeas). 2 minced garlic cloves 2 teaspoons of chopped coriander. 1 chopped sweet onion. 1 tablespoon of chili pepper powder. 1/2 teaspoon of ground cloves. 1/2 teaspoon of cinnamon. 1 tablespoon of brown or brown sugar. 1 chili pepper, chopped (in adobo sauce) and without seeds. Sliced avocado or haas avocados (optional). Sliced tomatoes (optional). Spinach in medium leaves (optional). 2 cups of vegetable broth. Low-sodium salt and pepper to taste.