1. Boil pasta according to package instructions until al dente. Drain and set aside.
2. In a large skillet, melt the butter over medium heat. Add the onions and cook, stirring occasionally, until caramelized, about 15-20 minutes. This step adds depth to the dish, just like the stories my dad used to tell over dinner.
3. Add the garlic and cook for another minute until fragrant.
4. Push the onions to the side of the pan and add the ground beef. Cook until browned, breaking it up with a spoon as it cooks.
5. Once the beef is cooked through, mix it with the onions and garlic. Pour in the beef broth and bring to a simmer.
6. Stir in the heavy cream and bring the mixture back to a gentle simmer.
7. Add the cooked pasta and cheese. Stir until the cheese is melted and everything is well combined. Season with salt and pepper to taste.
8. Garnish with fresh parsley if desired and serve hot.

Don’t rush the caramelizing process; it’s worth every minute. The onions become sweet and golden, adding a rich layer of flavor that makes this dish unforgettable.