01 -
Preheat the oven to 190°C. In a skillet over medium heat, cook the ground beef while breaking it apart with a spoon until browned. Add diced onion and minced garlic, continue cooking for 2–3 minutes until softened. Season with salt and pepper. Drain any excess fat and set aside.
02 -
In a mixing bowl, whisk together cream of mushroom soup, milk, and Worcestershire sauce until fully combined.
03 -
Lightly grease a 23×33 cm baking dish with olive oil or use cooking spray. Arrange half the thinly sliced potatoes evenly at the bottom. Season lightly with salt and pepper. Layer the cooked beef mixture over the potatoes. Pour half of the soup mixture evenly over the beef. Layer the remaining potatoes, followed by the rest of the soup mixture.
04 -
Cover the dish with aluminium foil and bake for 45 minutes at 190°C.
05 -
Remove the foil, sprinkle shredded cheddar cheese evenly on top, and bake uncovered for an additional 15 minutes until the cheese is melted and bubbly.
06 -
Allow the casserole to rest for 5–10 minutes before serving. Garnish with chopped parsley or green onions if desired.