1. Roast potatoes (a mix of sweet and russet suggested) in a casserole dish at 375°F (190°C) until tender. This will take about 30 minutes.
2. Meanwhile, cook ground beef in a skillet. Season the beef like you would a burger with salt, pepper, and garlic powder.
3. Remove the cooked beef from the skillet and set aside. In the same skillet, add sliced onions and sauté until softened.
4. Once the potatoes are tender, assemble the rest of the bake by adding the cooked ground beef, sautéed onions, and shredded cheese over the potatoes in the casserole dish.
5. Pop the casserole dish back into the oven for an additional 15 minutes, or until the cheese is melty and bubbly.
6. Remove from oven and top with your favorite burger toppings before serving.
