Everything goes into the crockpot together at the start, including the soup mixture and the frozen vegetables — there's no separate late-addition step with this method, so don't hold anything back. Swap in the cream of anything soup mix for either can if you want a more homemade version with the same result. Stir the cooked biscuit pieces in during the last 30 minutes so they soften and soak up the broth. This soup has dairy mixed in from the very start, so it's best fresh or refrigerated up to 4 days rather than frozen — freezing after the full cook can cause the dairy to separate on reheating. Reheat gently over low heat, adding a splash of broth or milk if it's thickened more than you'd like.