This easy chicken stew is cooked in the slow cooker with potatoes, carrots, onion soup mix, and tomato sauce. It's a simple combination of ingredients that is sure to please a hungry family. Just throw the ingredients together in the slow cooker and go about your day. Like most crock pot stews, this one is versatile. Add some other chopped vegetables to the mixture if you like, or add some frozen lima beans to the mixture. We prefer boneless chicken thighs because there's no need to separate meat from bones, and no risk of bones in the stew. If you do use bone-in chicken, remove it from the slow cooker before it falls apart. Remove the meat from the bones, chop it, and return it to the slow cooker.