Preheat your oven to 350°F (175°C).
In a large bowl, combine ground turkey, breadcrumbs, and grated Parmesan cheese.
Add the chopped onion and minced garlic to the mixture.
In a separate bowl, whisk together the egg, milk, Worcestershire sauce, salt, and pepper.
Pour the wet ingredients into the turkey mixture and combine thoroughly.
Transfer the mixture into a loaf pan, shaping it evenly.
Spread ketchup over the top for a flavorful glaze.
Bake in the preheated oven for 60 minutes or until cooked through.
Remove from the oven and let it rest for 10 minutes before slicing.
Serve warm and enjoy your delicious turkey meatloaf!