Preheat the oven to 375°F and grease a 12-cup muffin tin.
In a large bowl, stir together the breadcrumbs and milk and let sit 2 minutes.
Add the beef, egg, onion, garlic, Worcestershire, Italian seasoning, salt, and pepper. Mix gently with your hands until just combined (don’t overmix).
Divide the mixture evenly among the muffin cups, pressing lightly.
Whisk the glaze ingredients together and spoon over each meatloaf.
Bake 22–25 minutes, until the centers reach 160°F.
Let rest 5 minutes, then run a knife around the edges and remove from the tin.