Preheat your oven to 350°F (175°C) and line a baking tray with aluminum foil and lightly spray it with cooking spray.

In a mixing bowl, whisk together one egg, a splash of milk, and a generous amount of Italian seasoned breadcrumbs and let it sit for 5-10 minutes.

Gently combine the soaked mixture with lean ground beef, diced onion, Worcestershire sauce, dried Italian seasoning, fresh parsley, salt, and ground black pepper.

Transfer the meat mixture onto the prepared baking tray and mold it into a loaf shape.

Place the shaped meatloaf in the oven and bake for 35 minutes, checking the internal temperature.

After 35 minutes, remove the meatloaf and brush barbecue sauce over the top, then return it to the oven for another 5-10 minutes.

Once cooked, let the meatloaf rest for 10 minutes before slicing and serving.