1. Bring a large pot of salted water to a boil. Cook the rotini pasta according to the package instructions until al dente. Drain and set aside.

2. Cut the steak into evenly sized, bite-sized cubes. Season with salt, pepper, and Italian seasoning.

3. In a large skillet over medium-high heat, heat olive oil. Add the steak bites and sear for 2-3 minutes on each side, until browned and just cooked through. Remove from the skillet and set aside.

4. In the same skillet, reduce the heat to medium. Add butter and minced garlic. Cook for about 30 seconds until the garlic is fragrant.

5. Pour in the heavy cream, then stir in Parmesan cheese. Let it simmer gently for 3-4 minutes until the sauce thickens.

6. Add the cooked rotini and steak bites to the skillet. Toss gently to coat everything in the sauce. Cook for another 1-2 minutes to heat through.

7. Sprinkle fresh parsley on top and serve immediately while hot.