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 black pepper, then add to the skillet. Cook until thoroughly browned, breaking the meat apart 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 approximately 1 minute until fragrant, stirring frequently to prevent the garlic from browning.
04 - Return the browned ground beef to the skillet. Add the drained pasta and toss to coat evenly. Gradually incorporate reserved pasta water, a small amount at a time, until the sauce reaches your desired consistency and clings to 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. Top with chopped fresh parsley and serve immediately while warm.