1. Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.

2. In a skillet, cook ground beef and diced onion over medium heat until browned. Drain excess grease.

3. Stir in garlic powder, paprika, salt, pepper, and Worcestershire sauce.

4. In a bowl, whisk together cream of mushroom soup, milk, and beef broth.

5. Layer half of the sliced potatoes in the baking dish.

6. Spread half of the beef mixture over the potatoes.

7. Pour half of the soup mixture over the top, then sprinkle with 1 cup of cheddar.

8. Repeat layers: potatoes, beef, soup mixture, ending with remaining cheese.

9. Cover with foil and bake for 45 minutes.

10. Remove foil and bake an additional 20–25 minutes, until potatoes are tender and cheese is golden.

11. Let rest 10 minutes before serving. Garnish with parsley.