Place all of the ingredients except for noodles in a crockpot. Cover and cook on low for 8-12 hours, or on high 4-6 hours. (Note: Chicken should fall apart easily after cooking, if you want you could also shred chicken with two forks breaking it up in the crockpot. In addition, the cauliflower should completely break down to form a thick creamy soup. You can always help break down any remaining chunks with the back of a spoon.)
After cooking, add and stir noodles into the crockpot. Return cover and turn heat to high. Cook for an additional 20-30 minutes, or until noodles are cooked to your liking. Stir to incorporate everything and season with pepper and parsley as desired. Enjoy!