Preheat the oven to 375°F.
Combine beef, egg, breadcrumbs, onion, garlic powder, salt, and pepper.
Add Worcestershire sauce and a small amount of BBQ sauce.
Mix gently without overworking the meat.
Shape into a loaf and place in a baking dish.
Mix the remaining BBQ sauce with ketchup.
Spread the sauce over the top.
Bake until completely cooked.
Allow the meatloaf to rest before slicing.
Garnish with parsley.