Preheat the oven to 375 degrees F.
Combine in a deep bowl the turkey minced meat, egg, bread crumbs, half a cup of ketchup, chopped onion and garlic, salt and pepper. Stir until mixed.
Sprinkle a baking dish with a culinary spray and put the finished mixture into it. Press a little with your hands so that the stuffing fills the whole form.
Combine the remaining ketchup, Worcestershire sauce, and mustard. Spread evenly over the meatloaf surface.
Bake in the oven for one hour, then remove and serve.