01 - Cook pasta according to package instructions. Reserve ½ cup pasta water, then drain and set aside.
02 - Pat chicken breasts dry. Season both sides with salt, pepper, and Italian seasoning.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook 5–6 minutes per side until golden and cooked through. Transfer to a plate, rest for 5 minutes, then slice thinly.
04 - In the same skillet, melt butter. Add garlic and sauté until fragrant, about 1 minute.
05 - Stir in heavy cream and chicken broth; bring to a gentle simmer.
06 - Whisk in Parmesan cheese until melted and smooth. Add sun-dried tomatoes and crushed red pepper flakes, simmer for 2–3 minutes.
07 - Return sliced chicken to the pan. Add cooked pasta and toss to coat. Add reserved pasta water as needed for a creamy consistency. Remove from heat. Stir in fresh basil. Serve immediately, garnished with extra Parmesan and basil if desired.