In a bowl, combine ground beef, onion, milk, sugar, and breadcrumbs. Then add the mustard and ketchup. Mix well.
Then season with salt and pepper. Continue mixing.
After mixing, transfer the mixed ingredients in a loaf pan or tray.
Preheat oven to 350 degrees Fahrenheit and bake for 1 hour.
Remove from the oven and transfer to a serving plate.
Serve. Share and enjoy!