Step 1
Combine diced tomatoes with green chiles, chili beans, salsa, dark and light red kidney beans, black beans, onions, garlic, chili powder, red pepper flakes, black pepper, cumin, taco seasoning mix, and hot sauce in a large soup pot. Bring to a boil, reduce heat to low, and cover pot. Simmer until soup is heated and onions are translucent, about 20 minutes.