1
Preheat the oven to 175°C. 2
Grease a 9x5-inch loaf pan with cooking spray, oil or butter.
3
Mix the beef mince, onion, milk, dried bread crumbs, and egg in a large bowl. Season with salt and pepper, then transfer to the greased loaf pan.
4
Combine the ketchup, brown sugar, and mustard in a small bowl. Pour over the meatloaf and spread evenly across the top.
5
Cook until the center is no longer pink, about 1 hour.