Slow cooker method: see the step-by-step slow cooker instructions in the post below. Substitutions: use 2 to 3 tablespoons of tomato paste in place of the tomato sauce or passata; swap the ground beef for ground turkey for a leaner chili; and add extra beans (more kidney, black, or pinto) to bulk it up. For a smoother, less chunky chili, blend some of it with an immersion blender.