01 - Heat a skillet over medium heat and add the ground beef. Cook, breaking it apart with a spoon, until no longer pink. Drain excess fat and set aside.
02 - Add diced onion, minced garlic, and bell pepper to the skillet with the beef. Sauté for 2-3 minutes until vegetables are softened. Transfer the entire mixture to the crockpot.
03 - Pour the corn, diced tomatoes with juices, green chilies, black beans, and kidney beans into the crockpot with the beef mixture.
04 - Pour in the beef broth. Sprinkle the taco seasoning, ground cumin, black pepper, and salt over all ingredients. Stir thoroughly to combine all flavors.
05 - Cover the crockpot and cook on Low setting for 6-7 hours or on High setting for 3-4 hours until flavors are melded and vegetables are tender.
06 - Taste the soup and adjust salt, pepper, or spices as needed before serving.
07 - Ladle hot soup into bowls and top with your choice of shredded cheese, sour cream, chopped cilantro, sliced jalapeños, or crushed tortilla chips.