Using a small, 1.6-inch cookie scoop or large soup spoon, scoop the turkey mixture into a single layer of meatballs into the base of the slow cooker. Gently add any remaining mixture on top, creating a second layer.
Ground turkey is very sticky and doesn’t roll as easily or cleanly as ground beef.
So trying to roll the turkey meat into balls by hand will likely result in a mess.
That's why I highly recommend using the cookie scoop or spoon method for best results!