Preheat oven to 400 degrees F. Grease a muffin pan or a baking sheet with olive oil.
In a medium bowl, combine all of the ingredients and mix well. Form the mixture into 12 balls and arrange on the muffin pan or baking sheet.
Bake until cooked through, about 15 minutes. Let cool completely on a rack.
Recipe adapted from: https://www.rachaelraymag.com/recipe/k-9-ingredient-meatballs
*Note: Check with your vet to see if this recipe is suitable for your dog.