01 - Bring a large pot of salted water to a boil. Cook pasta according to package directions until al dente. Reserve 1/2 cup pasta water, then drain.
02 - Season chicken pieces evenly with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add seasoned chicken and cook 5-7 minutes, stirring occasionally, until golden and cooked through. Remove chicken and set aside.
04 - Reduce heat to medium. Add minced garlic to skillet and sauté 30 seconds until fragrant.
05 - Pour in heavy cream and bring to a simmer. Cook 2 minutes. Stir in pesto and Parmesan until smooth and combined.
06 - Return chicken to skillet. Add drained pasta and toss everything together. Add reserved pasta water as needed to loosen sauce. Serve immediately garnished with fresh basil and extra Parmesan.