Combine ingredients. Preheat oven to 350°F (175°C). In a large mixing bowl, add the ground turkey, onion, garlic, eggs, ketchup, mustard, Worcestershire sauce, oats, milk, parsley, Italian seasoning, paprika, salt, and pepper. Using your hands, mix together the ingredients until well combined, but try not to over-mix.
Form a loaf. On a casserole pan or rimmed baking sheet, form the mixture into an approximate 9x5-inch loaf. Alternatively, you can add the mixture to a loaf pan.
Coat with the glaze. In a small bowl, stir together the ketchup, Worcestershire sauce, and maple syrup. Brush it all over the top of the meatloaf.
Cook. Place the meatloaf in the oven and cook for 45 to 50 minutes, or until the internal temperature has reached 160°F (70°C). Make sure to not overcook the turkey meatloaf as it can dry out.
Slice and serve. Remove the meatloaf from the oven and let it rest for 10 minutes. Then, slice it up and serve!