Preheat oven to 350° F. In a large bowl, add the beef, bread crumbs, onion, milk, egg, 2 Tbsp. tomato paste, 1 Tbsp. Lee Kum Kee Black Pepper Grilling Sauce, brown sugar, parsley, salt, garlic powder, and pepper. Mix until well combined.
Add the meat mixture to a half bread loaf pan, pat down to fit evenly and smooth the top.
Add the rest of the Lee Kum Kee Black Pepper Grilling Sauce to the top of the meatloaf, spreading evenly.
Bake uncovered for 50 minutes. If the top starts to burn, cover with foil and bake for remaining time.
Let the meatloaf rest for 8-10 minutes before serving. After it has rested, slice and enjoy.