I used 4 eggs in my batch and added in a small bunch of chopped fresh parsley. At some point during moving, the muffin tins seem to have disappeared, so I just rolled up a bunch of little meatballs and baked them up at 350°F for 30 minutes.
After letting them cool down, I gave one to each of the dogs. Once they figured out what the strange little round thing was and that it tasted good, the turkey meatballs disappeared pretty quickly. I think they liked their new treats.
Here's the version I made. It seems like a pretty flexible recipe to adjust, so be creative.
500 g (about 1 pound) lean ground turkey
1 small sweet potato, grated (about 1 cup)
4 cups rolled oats
1 cup chopped parsley
5 mL olive oil
Mix everything together and spoon into muffin tins (or roll into meatballs) and bake at 350°F for about 20-30 minutes depending on how large you made them.