01 - Preheat the oven to 400°F. Lightly grease a baking dish large enough to hold the chicken breasts in a single layer.
02 - Pat the chicken breasts dry. Rub them with 1 tablespoon olive oil, salt, and pepper. Arrange in the prepared baking dish.
03 - In a food processor, combine basil, Parmesan, pine nuts, garlic, lemon zest, lemon juice, salt, and pepper. Pulse until finely chopped.
04 - With the processor running, slowly drizzle in the olive oil until a smooth, vibrant pesto forms. Scrape down the sides as needed.
05 - Spread a generous layer of the lemon basil pesto over each chicken breast, covering the top fully. Reserve any leftover pesto for serving.
06 - Bake for 20–25 minutes, or until the chicken reaches an internal temperature of 165°F and the juices run clear.
07 - Let rest for 3 minutes. Serve with extra pesto, lemon slices, and fresh basil if desired.