In the same skillet, melt the butter over medium heat.
Add minced garlic and cook until fragrant (about 1-2 minutes).
Stir in the heavy cream, chicken broth, and remaining Italian seasoning.
Gradually whisk in the Parmesan cheese, letting it melt and thicken the sauce.
4. Combine Everything
Add the cooked pasta and chicken back to the skillet.
Toss to coat everything in the creamy sauce. If the sauce is too thick, add a bit of the reserved pasta water until the desired consistency is reached.
Taste and adjust seasoning with salt, pepper, and red pepper flakes if using.