Cook the Rotini:

1. Boil rotini pasta in salted water until al dente (about 10–12 minutes). Drain and set aside, reserving 1/2 cup of pasta water.

Prepare the Steak Bites:

2. Season steak bites with salt and pepper.
3. Heat a skillet over medium-high heat and melt butter.
4. Sear steak bites for 2–3 minutes per side until browned and medium-rare.
5. Add minced garlic and toss for 1 minute until fragrant.
6. Remove steak bites from skillet and set aside.

Make the Garlic Parmesan Sauce:

7. In the same skillet, melt butter over medium heat.
8. Add minced garlic and cook for 1 minute until fragrant.
9. Stir in heavy cream and Italian seasoning, whisking constantly.
10. Gradually add Parmesan cheese, whisking until melted and creamy.
11. Season with salt and pepper to taste.

Combine Everything:

12. Add cooked rotini to the sauce, tossing to coat evenly.
13. If the sauce is too thick, add a bit of the reserved pasta water.
14. Return steak bites to the skillet and gently toss with the pasta.

Serve:

15. Plate the pasta and steak bites.
16. Garnish with chopped parsley and extra Parmesan, if desired.