Start by bringing a large pot of salted water to a vigorous boil over high heat. Add the bowtie pasta and cook according to package instructions until al dente, usually about 8-10 minutes. Once done, drain the pasta in a colander but do not rinse.

While the pasta is cooking, heat 2 tablespoons of olive oil in a large skillet over medium heat. Add the diced onion and sauté for approximately 5 minutes until the onions are soft and slightly golden. Stir in 3 minced garlic cloves and cook for an additional 30 seconds.

Next, add 1 pound of ground beef to the skillet, using a spatula to break it apart. Cook for about 5-7 minutes until the beef is browned and cooked through. Drain any excess fat.

Pour in ½ cup of beef broth, carefully scraping up any browned bits stuck to the bottom. Season with ¼ teaspoon of red pepper flakes, salt, and black pepper to taste. Allow it to simmer for about 3-4 minutes.

Gently fold the drained bowtie pasta into the beef mixture in the skillet. Toss everything together to ensure the pasta is well-coated with the sauce.

Serve your Garlic Butter Bowtie Pasta immediately, topping each portion with freshly grated Parmesan cheese and parsley.