Prep the Chicken: Season the chicken breasts with salt and pepper. Heat a skillet over medium heat and add a little oil or butter.
Cook the Chicken: Place the chicken breasts in the hot skillet and cook for about 6-7 minutes per side, until golden brown and cooked through (internal temperature should reach 165°F).
Make the Sauce: While the chicken is cooking, whisk together the pesto, heavy cream, and Parmesan cheese in a bowl until smooth.
Combine: Once the chicken is cooked, pour the creamy pesto sauce over the chicken in the skillet. Stir to coat the chicken evenly in the sauce.
Simmer: Let the chicken simmer in the sauce for 2-3 minutes until the sauce thickens and becomes creamy.
Serve: Serve the chicken with the creamy pesto sauce spooned over the top. Pair it with pasta, rice, or vegetables.