Cook the pasta according to package instructions until al dente.
In a large skillet, brown the ground beef over medium heat, breaking it up with a spatula.
Add the diced onion and minced garlic to the skillet, cooking until the onion is translucent.
Pour in the beef broth and bring the mixture to a simmer.
Stir in the heavy cream and Italian seasoning, allowing it to simmer for a few minutes.
Add the cooked pasta to the skillet, tossing to coat in the sauce.
Stir in the grated Parmesan cheese until melted and combined, then season with salt and pepper.
Let the dish sit off heat for a few minutes before serving, allowing flavors to meld.