01 - Cook pasta according to package instructions. Reserve ½ cup pasta water, then drain and set aside.
02 - Pat chicken breasts dry with paper towels. Season both sides generously with salt, pepper, and Italian seasoning.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook for 5–6 minutes per side until golden brown and cooked through. Transfer to a plate, let rest for 5 minutes, then slice into thin strips.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and sauté until fragrant, about 1 minute, being careful not to burn.
05 - Pour in heavy cream and chicken broth, stirring to combine. Bring to a gentle simmer, stirring occasionally.
06 - Whisk in grated Parmesan cheese until fully melted and smooth. Add sun-dried tomatoes and crushed red pepper flakes if using. Simmer for 2–3 minutes until slightly thickened.
07 - Return sliced chicken to the pan. Add cooked pasta and toss everything together until well coated. Add reserved pasta water as needed to achieve desired creamy consistency. Remove from heat, stir in fresh basil, and serve immediately with extra Parmesan and basil garnish if desired.