Boil a large pot of salted water. Add bowtie pasta and cook until al dente, about 8-10 minutes. Drain, reserving ½ cup pasta water.
Melt 1 tbsp butter in a skillet over medium heat. Add ground beef, breaking it apart. Cook until browned, about 5-7 minutes. Season with salt and pepper.
Stir in minced garlic and Italian seasoning. Cook for 1-2 minutes until fragrant.
Add remaining butter, heavy cream, and Parmesan. Stir until melted and thick, about 3-4 minutes.
Toss pasta into the sauce. Add reserved pasta water if too thick. Garnish with parsley and serve.
Notes
Customize with veggies like spinach or swap beef for turkey. Store leftovers in the fridge for up to 3 days or freeze for 2 months.