Preheat the oven to 350°F (175°C) and prepare your baking pan by greasing a 9x5-inch loaf pan or lining a baking sheet with parchment paper.

In a large bowl, combine ground beef, onion, eggs, milk, breadcrumbs, garlic, ketchup, parsley, Worcestershire sauce, salt, pepper, and Italian seasoning. Mix gently until just combined.

Shape the mixture into a loaf, about 2 inches thick, and place it into the prepared pan.

In a separate bowl, whisk together the glaze ingredients and brush half over the meatloaf.

Bake for about 45 minutes, or until nicely browned. Brush on the remaining glaze halfway through cooking.

Check for doneness, aiming for an internal temperature of 160°F (71°C). Bake longer if necessary.

Let it rest for 10-15 minutes before slicing and serving.