In a large bowl, combine the ground turkey, breadcrumbs, egg, milk, Parmesan cheese, minced garlic, salt, pepper, Italian seasoning, and parsley. Mix until just combined, being careful not to overwork the mixture.
Form the mixture into 1 1/2-inch meatballs and place them on a baking sheet lined with parchment paper.
Drizzle the meatballs with olive oil and bake in the preheated oven for 20 minutes, or until they are cooked through and have an internal temperature of 165 degrees F.
Remove from the oven and let the meatballs rest for a few minutes before serving.