Creating One-Pot Creamy Beef and Garlic Butter Pasta is a breeze when you follow these simple steps:

1. Brown the Beef: In a large pot, heat 1 tablespoon of butter over medium heat. Add the ground beef and cook until browned. Drain excess fat if necessary.
2. Sauté the Onions and Garlic: Add the chopped onion and minced garlic to the pot. Sauté until the onion is translucent, about 3-4 minutes.
3. Add the Pasta and Broth: Stir in the pasta and beef broth. Bring to a boil, then reduce the heat to a simmer.
4. Season: Add Italian seasoning, salt, and pepper. Stir well to combine.
5. Cook the Pasta: Cover and cook for about 10-12 minutes, or until the pasta is tender and has absorbed most of the broth. Stir occasionally to prevent sticking.
6. Add Cream and Remaining Butter: Once the pasta is cooked, stir in the heavy cream and the remaining 3 tablespoons of butter. Mix until well combined and creamy.
7. Garnish and Serve: Remove from heat and garnish with fresh parsley and grated Parmesan cheese before serving.

These straightforward steps will guide you in creating this incredible one-pot meal effortlessly.