Preheat the oven to 400°F (200°C).
In a large mixing bowl, combine ground turkey, breadcrumbs, Parmesan cheese, egg, onion, garlic, salt, and pepper.
Form the mixture into golf ball-sized meatballs.
Place the meatballs on a lined baking sheet and drizzle with olive oil.
Bake the meatballs for 20-25 minutes, until cooked through.
While the meatballs are baking, prepare the cranberry glaze by heating the cranberry sauce in a saucepan over medium heat.
Once the meatballs are done, remove them from the oven and toss them in the cranberry glaze.
Serve the glazed meatballs warm, garnished with fresh herbs if desired.