1. 1. In a large pot, cook the ground beef over medium heat until browned. Drain excess fat if needed.

2. 2. Add the chili beans and diced tomatoes to the pot. Stir well to combine.

3. 3. Season with salt, pepper, and any other desired spices (such as chili powder or cumin).

4. 4. Simmer the chili for about 20-30 minutes, stirring occasionally.

5. 5. Serve hot with toppings like shredded cheese, sour cream, and green onions.