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 until shimmering. 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 cutting board and let it rest for 5 minutes before slicing into thin strips.
04 - Reduce the heat to medium in the same skillet. Melt the butter, then add the minced garlic. Sauté for about 1 minute, stirring frequently, until fragrant and lightly golden.
05 - Add the sliced sun-dried tomatoes to the skillet and cook for 1 minute, stirring to combine. Pour in the chicken broth and bring to a gentle simmer, using a wooden spoon to scrape up any browned bits from the bottom of the pan.
06 - Stir in the heavy cream and grated Parmesan cheese. Let the sauce simmer for 2 to 3 minutes, stirring occasionally, until it thickens enough to coat the back of a spoon. Add the crushed red pepper flakes if desired for a subtle kick of heat.
07 - Return the sliced chicken to the skillet along with the drained pasta. Toss everything together thoroughly so the sauce coats each piece of pasta and chicken evenly. If the sauce feels too thick, loosen it with a splash of the reserved pasta water.
08 - Taste and adjust the seasoning with additional salt and pepper as needed. Serve immediately in warm bowls, garnished with fresh sliced basil and an extra shower of Parmesan cheese.