01 - Preheat the oven to 400°F. Lightly grease a 12-cup muffin tin or line with paper liners.
02 - In a large mixing bowl, combine the ground turkey, onion, carrot, celery, and garlic.
03 - Add the milk, egg, tomato paste, Worcestershire sauce, breadcrumbs, Italian herbs, salt, and pepper. Gently mix until just combined—do not overmix to keep the texture tender.
04 - Evenly divide the mixture among the 12 muffin cups, pressing gently to pack each one firmly.
05 - Top each muffin with a small spoonful of ketchup, spreading it evenly over the surface.
06 - Bake for 22–25 minutes, or until the internal temperature reaches 165°F and the tops are lightly browned.
07 - Let cool for 5 minutes in the tin before removing. Serve warm.