01 -
Set oven temperature to 190°C (375°F) and allow to heat fully.
02 -
In a skillet, brown the ground beef over medium heat, draining excess fat. Add diced onion, Worcestershire sauce, garlic powder, onion powder, salt, and black pepper. Sauté for 2 minutes until fragrant.
03 -
Whisk together the cream of mushroom soup and milk in a bowl until smooth and well combined.
04 -
Grease a 23x33 cm (9x13 inch) baking dish. Layer half of the sliced potatoes evenly on the bottom, followed by half of the cooked beef mixture, then half of the mushroom sauce. Repeat these layers once more.
05 -
Sprinkle the shredded cheddar cheese evenly over the top layer and cover the dish with aluminum foil.
06 -
Place the casserole in the preheated oven and bake covered for 50 minutes.
07 -
Remove foil and continue baking uncovered for an additional 10 to 15 minutes until the cheese is melted and golden.
08 -
Allow the casserole to rest for 5 minutes before serving. Garnish with fresh parsley if desired.