Making Hobo Casserole is a straightforward process, and following these steps ensures delicious results:

1. Preheat your oven to 375°F (190°C).
2. Heat the olive oil in a large skillet over medium heat. Add the chopped onion and sauté until softened, about 3-5 minutes.
3. Add the ground beef to the skillet. Cook until browned, breaking it up with a spatula as it cooks, approximately 6-8 minutes.
4. Season the beef with garlic powder, salt, and pepper. Stir well to combine.
5. In a large mixing bowl, combine the diced potatoes and mixed vegetables. Add the cooked beef mixture and the cream of mushroom soup. Stir until well combined.
6. Transfer the mixture to a greased 9×13-inch baking dish. Spread evenly with a spatula.
7. Cover the dish with foil and bake in the preheated oven for 30 minutes.
8. After 30 minutes, remove the foil and sprinkle the shredded cheese on top.
9. Bake uncovered for an additional 10-15 minutes, or until the cheese is melted and bubbly, and the potatoes are tender.
10. Once finished, remove from the oven and let it cool for about 5 minutes before serving.