This hearty and flavorful chili is packed with protein and fiber from black beans and sweet potatoes. Simply sauté chopped onions and garlic in a little bit of olive oil, then add in diced sweet potatoes, black beans, diced tomatoes, and vegetable broth. Season with chili powder, cumin, and paprika and let simmer until sweet potatoes are tender. Serve with a dollop of Greek yogurt and chopped cilantro for a delicious and healthy meal.