1. Preheat oven to 375°F (190°C).

2. In a large skillet, heat olive oil over medium heat. Add diced onion and sauté until softened, about 5 minutes.

3. Stir in minced garlic and cook for 1 minute more.

4. Add ground beef to the skillet. Cook until browned and crumbled. Season with paprika, salt, and pepper. Drain excess fat if necessary.

5. In a mixing bowl, toss diced potatoes with a drizzle of olive oil, a pinch of salt, and extra paprika if desired.

6. In a greased 9×13-inch baking dish, layer half of the potatoes, then half of the beef, followed by half of each cheese.

7. Repeat the layers, ending with the remaining cheese on top.

8. Cover the casserole with aluminum foil and bake for 30 minutes.

9. Remove foil and bake for an additional 15–20 minutes, or until the potatoes are tender and the cheese is golden and bubbly.

10. Let rest for 10 minutes before serving. Garnish with fresh parsley or thyme if using.