01 - Bring a large pot of generously salted water to a rolling boil. Add the pasta and cook according to package directions until al dente. Reserve 1/2 cup of the starchy pasta water, then drain the pasta and set it aside.
02 - While the pasta cooks, pat the chicken breasts dry with paper towels. Season both sides evenly with salt, freshly ground black pepper, and the Italian seasoning blend.
03 - Heat the olive oil in a large skillet over medium-high heat. Place the seasoned chicken breasts in the skillet and cook for 5 to 6 minutes per side, until deeply golden brown and cooked through to an internal temperature of 165°F. Transfer the chicken to a plate and let it rest for 5 minutes before slicing it thinly against the grain.
04 - Reduce the heat to medium. In the same skillet with the rendered fond, melt the butter. Add the minced garlic and sauté for about 1 minute, stirring constantly, until fragrant and lightly golden.
05 - Stir in the sliced sun-dried tomatoes and cook for 1 minute. Pour in the chicken broth and bring to a gentle simmer, using a wooden spoon to scrape up all the caramelized brown bits from the bottom of the skillet.
06 - Whisk in the heavy cream and Parmesan cheese. Let the sauce simmer gently for 2 to 3 minutes, stirring frequently, until it thickens enough to coat the back of a spoon. Stir in the crushed red pepper flakes if desired.
07 - Return the sliced chicken to the skillet along with the drained pasta. Toss everything together until the pasta and chicken are evenly coated in the creamy sauce. If the sauce is too thick, loosen it with a splash of the reserved pasta water.
08 - Taste and adjust the salt and pepper as needed. Serve immediately in warmed bowls, garnished with freshly sliced basil and an extra dusting of Parmesan cheese.