Saute onion and red pepper for several minutes, stirring until softened then add garlic and cook 1 more minute.
Spray or line 6 quart slow cooker. Add cooked meat, vegetables, tomatoes with juice, beans with sauce, tomato sauce, and seasonings. Stir well, cover and cook on low for 6-7 hours.
Right before serving stir in pasta and cheese or add it to individual bowls with chili.
Keyword chili mac & cheese, chili with pasta, macaroni and cheese, slow cooker chili mac & cheese