Preheat & Prepare

• Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish.

Make the Hamburger Patties

• In a bowl, mix ground beef, garlic powder, onion powder, salt, and pepper.

• Form into 6 evenly sized patties.

• Heat a skillet over medium heat and brown the patties on both sides (they don’t need to be fully cooked). Set aside.

Prepare the Gravy

• In the same skillet, whisk together 1 cup milk and flour until smooth.

• Slowly add the remaining 1 cup milk, whisking continuously until the mixture thickens into a gravy.

• Season with salt and pepper, adjusting to taste.

Assemble the Casserole

• Layer half of the potato slices in the bottom of the prepared baking dish.

• Add half of the onion slices on top.

• Arrange the browned hamburger patties over the onions.

• Layer the remaining potatoes and onions on top.

Bake the Casserole

• Pour the prepared gravy evenly over the entire dish.

• Cover with foil and bake for 1 hour.

• Remove the foil, sprinkle the shredded cheddar cheese on top, and bake uncovered for another 15 minutes, until the cheese is melted and bubbly.

Serve & Enjoy!

• Let the dish rest for 5-10 minutes before serving.