In a large pot, bring salted water to a boil. Add the rotini pasta and cook according to package instructions until al dente. Drain and set aside.
While the pasta cooks, heat the olive oil in a skillet over medium-high heat. Add the beef strips, season with salt and pepper, and cook for about 5-7 minutes, or until browned. Remove the beef from the skillet and set aside.
In the same skillet, reduce the heat to medium and add the minced garlic. Sauté for 1-2 minutes until fragrant, being careful not to burn it.
Pour in the heavy cream and stir to combine. Allow it to simmer for a couple of minutes until it slightly thickens.
Stir in the grated Parmesan cheese until melted and smooth. If using, add the dried Italian herbs for extra flavor.
Return the cooked beef to the skillet and mix well to coat with the sauce. Add the cooked rotini to the skillet and toss everything together, adjusting seasoning with salt and pepper as needed.
Serve hot, garnished with chopped fresh parsley if desired.