Cook Pasta: Bring a large pot of salted water to a boil. Add pasta and cook until al dente, about 8-10 minutes. Reserve 1/2 cup of pasta water, then drain.

Season Chicken: Slice chicken breasts and rub with salt, black pepper, onion powder, and Italian seasoning.

Sear Chicken: Heat olive oil in a large skillet over medium-high heat. Cook chicken for 3-4 minutes on each side until golden and cooked through. Remove from skillet.

Cook Garlic: Add minced garlic to the skillet and sauté for 60 seconds until fragrant.

Add Broth: Pour in chicken broth, scrapping up browned bits, and simmer for 2 minutes.

Incorporate Creaminess: Stir in Greek yogurt until smooth, then add grated Parmesan cheese, mixing until incorporated.

Combine: Add drained pasta and chicken to the skillet, tossing gently and using reserved pasta water as needed.

Serve: Taste and adjust seasoning. Serve garnished with Parmesan and parsley.