01 - Preheat the oven to 350°F. Line a 9x5-inch loaf pan with parchment paper or lightly grease it.
02 - In a large bowl, gently mix ground turkey, onion, garlic, carrot, celery, breadcrumbs, milk, eggs, 2 tablespoons ketchup, Worcestershire sauce, thyme, oregano, salt, and pepper until just combined. Avoid overmixing.
03 - Transfer the mixture to the prepared loaf pan and shape into an even loaf.
04 - In a small bowl, combine 2 tablespoons ketchup with Dijon mustard and spread evenly over the top of the loaf.
05 - Bake for 55 to 60 minutes, or until the internal temperature reaches 165°F and the loaf is cooked through.
06 - Allow the loaf to rest for 10 minutes before slicing. Serve warm.