Cook the Pasta: Bring a large pot of salted water to a boil and cook the bowtie pasta according to package instructions until al dente, about 10-12 minutes. Drain and set aside.

Sauté the Aromatics: In a large skillet, heat olive oil over medium heat, add finely diced onion, and sauté until soft and golden, about 5-7 minutes. Add minced garlic and stir continuously for 30 seconds.

Brown the Beef: Add ground beef to the skillet, breaking it up and cooking for 6-8 minutes until browned. Drain excess fat.

Deglaze the Pan and Season: Pour in beef broth, deglaze the pan, and let it simmer for 2-3 minutes. Add red pepper flakes, salt, and black pepper to taste.

Combine Ingredients: Add the drained pasta to the skillet and toss to combine with the sauce. Optionally, drizzle an additional tablespoon of olive oil.

Serve and Garnish: Plate the pasta and garnish with freshly grated Parmesan cheese and parsley. Serve warm.