A hearty and comforting beef chili can be made quickly using ground beef. Brown the ground beef in a large pot, then add diced onions, bell peppers, and garlic. Cook until the vegetables are softened, then add canned diced tomatoes, kidney beans, chili powder, cumin, and other spices of your choice. Simmer the chili for about 30 minutes to allow the flavors to meld together. Serve the beef chili with your favorite toppings such as shredded cheese, sour cream, and chopped green onions. This satisfying dish is perfect for chilly days or casual gatherings.