Heat a pot on medium heat and add oil.
Chop the onion, pepper, and garlic and add to the pan once the oil begins to sizzle. Sauté for about 3 minutes until the onion turns clear.
Stir in water, tomato paste, chili powder, cumin, garbanzo beans, kidney beans, black beans, broth, and diced tomatoes. Simmer for about 8-10 minutes.
Remove from heat, add cilantro, and serve with plain yogurt & cheese.