Holding the bowl over the slow cooker, slowly drizzle this 1 creamy herb mixture evenly over the raw chicken breasts and the orzo underneath, making sure everything is moistened. Do not stir; you want the chicken to stay on top so it cooks evenly.
Cover the slow cooker with the lid and cook on LOW for 3 1/2 to 4 1/2 hours, or on HIGH for 2 to 2 1/2 hours. Cooking times can vary by slow cooker; the chicken