Basic Crockpot Meatloaf 01 2 pounds ground beef 2 eggs 2 slices bread, cubed Milk Ketchup Salt and pepper 1 small onion, chopped In bowl, beat eggs. Add bread. Add enough milk to moisten. Add beef, mix well. Season to taste. Place into crockpot. shape to fit, flatten. Pour ketchup on top, enough to cover completely. Cover. Cook on low for 8 to 12 hours.