01 - Cook pasta according to package instructions. Reserve ½ cup pasta water before draining 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 internal temperature reaches 165°F. Transfer to a plate and rest for 5 minutes before slicing thinly.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and sauté until fragrant, approximately 1 minute, being careful not to burn.
05 - Pour in heavy cream and chicken broth, stirring to combine. Bring mixture to a gentle simmer over medium-low heat.
06 - Whisk in grated Parmesan cheese until completely melted and sauce is smooth. Stir in sun-dried tomatoes and crushed red pepper flakes. Simmer for 2–3 minutes until slightly thickened.
07 - Add sliced chicken back to the pan along with cooked pasta. Toss everything together until well coated. Add reserved pasta water as needed to achieve desired creamy consistency. Remove from heat, fold in fresh basil, and serve immediately with additional Parmesan and basil for garnish.