Combine vegetable broth, kidney beans, pumpkin puree, black beans, garbanzo beans, diced tomatoes, red bell peppers, onion, tomato sauce, baby spinach, green chile peppers, olives, orange juice, garlic, vegetable oil, tomato paste, cocoa powder, brown sugar, cumin, chipotle powder, salt, Mexican oregano, and coriander in a slow cooker.

Cook on Low, stirring occasionally, until flavors combine, about 8 hours.