Heat the oil (2 tablespoons) in a large skillet over medium-high heat. Add the beef (1 pound) and brown, crumbling with a wooden spoon, until there is no longer any pink, about 6-8 minutes.
Add the garlic (1 tablespoon), Italian seasoning (1 tablespoon), rosemary (1 teaspoon), and red pepper flakes (1/4 teaspoon) to the skillet and continue to cook for 1-2 minutes or until the garlic has softened.
Stir in 1 1/2 cups of the red wine and scrape up any brown bits from the bottom of the skillet.
Stir in the tomato sauce (1 can), tomato paste (2 tablespoons), salt (2 teaspoons), and black pepper (1/2 teaspoon) until evenly combined. Bring to a boil, then immediately reduce heat and simmer, uncovered, for 10 minutes.
While the sauce simmers and is almost done, cook pasta (1 pound) in well-salted water according to package instrucions. Remove and reserve about 1 cup of the pasta water. Drain the pasta well, then return it to the now empty pasta pot.
Stir in the nutmeg (1/4 teaspoon), cream (1 cup), and remaining 1/4 wine to the sauce and continue to simmer for another 10 minutes.
Pour the sauce and Parmesan (1/2 cup) over the pasta and toss to evenly coat. With the heat turned down to low, continue to cook pasta in sauce, for 2-4 minutes. Add reserved pasta water, a tablespoon at a time, to adjust the sauce if needed. Transfer to a serving bowl, sprinkle with chopped parsley, and serve.