01 -
Preheat oven to 375°F. Lightly grease a 9x13-inch baking dish.
02 -
In a large bowl, mix ground beef, breadcrumbs, milk, egg, onion powder, garlic powder, salt, and black pepper until thoroughly blended.
03 -
Shape the mixture into meatballs, approximately 1 to 1 1/2 inches in diameter, and arrange them in the prepared baking dish.
04 -
Bake meatballs in the oven for 20 minutes, or until browned and mostly cooked through.
05 -
Remove the baking dish from the oven and spread the mashed potatoes evenly over the meatballs.
06 -
Drizzle beef gravy over the mashed potatoes, then sprinkle the shredded cheddar cheese evenly on top.
07 -
Return the dish to the oven and bake for 15 to 20 minutes, or until the cheese is melted and bubbling.
08 -
Remove from oven and garnish with chopped parsley before serving, if desired.