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