Cook the ground beef until it is cooked through by browning it in a skillet over medium heat with chopped onions and minced garlic.
Eliminate extra fat.Place the cooked combination of meat in the crockpot.To the crockpot, add chopped tomatoes, kidney beans, black beans, tomato paste, beef broth, cumin, paprika, chili powder, and salt and pepper.
Mix thoroughly to blend.Cook the chili, covered, over low heat for 6 to 8 hours or on high heat for 3 to 4 hours, or until the flavors combine and the consistency is to your liking.
Serve hot with your preferred toppings (shredded cheese, sour cream, chopped cilantro, or green onions, for example)