01 - Bring a large pot of salted water to a boil. Cook pasta according to package directions until al dente. Reserve 1/2 cup of pasta water before draining.
02 - Heat a large skillet over medium-high heat. Season ground beef with salt and pepper, then add to the skillet. Cook until browned and cooked through, breaking up the meat with a wooden spoon. Drain excess fat and transfer to a plate.
03 - In the same skillet, melt butter over medium heat. Add minced garlic, Italian seasoning, and crushed red pepper flakes. Sauté for about 1 minute until fragrant, stirring frequently to prevent the garlic from browning.
04 - Return the cooked ground beef to the skillet. Add the drained pasta and toss to combine. Gradually stir in small amounts of the reserved pasta water until the sauce evenly coats the pasta.
05 - Sprinkle Parmesan cheese over the pasta and toss until melted and evenly distributed. Adjust seasoning with additional salt and pepper as needed.
06 - Remove from heat and transfer to serving plates. Garnish with chopped fresh parsley and serve immediately.