I made this one up on my own after I learned how to cook well enough. All kinds of beans can be used, black beans do very well as do pinto beans, but regular red or dark red kidney beans are my favorite with this particular soup. You can also substitute pumpkin puree for squash puree! I think the green onion goes perfect with the mix but a small can of green chiles works well too. This is a great soup to have in the fall. Yields about 4 medium-sized servings.