Cook the Pasta
Bring a large pot of salted water to a boil. Add the pasta and cook according to package directions until al dente. Drain and set aside, reserving ½ cup of pasta water.
Brown the Beef
In a large skillet, heat the olive oil over medium-high heat. Add the ground beef and cook until browned, breaking it apart with a wooden spoon. Season with salt and pepper. Remove excess fat if necessary.
Add Aromatics
Stir in the onion and garlic, cooking for 3–4 minutes until softened and fragrant. Add Italian seasoning and chili flakes to infuse the beef with flavor.
Build the Creamy Sauce
Mix in the tomato paste and stir well for 1 minute. Pour in the beef broth and let it simmer for 3 minutes to reduce slightly. Lower the heat and add the heavy cream. Stir gently until the sauce thickens and becomes silky smooth.
Add Cheese & Pasta
Stir in the grated Parmesan cheese until melted into the sauce. Toss the cooked pasta into the skillet, coating it evenly with the creamy beef sauce. If the sauce feels too thick, add a splash of reserved pasta water to loosen it up.
Garnish & Serve
Top with freshly chopped parsley and an extra sprinkle of Parmesan. Serve hot with garlic bread or a crisp green salad.