01 - Preheat oven to 400°F. Lightly grease a baking dish large enough to hold chicken in a single layer.
02 - Pat chicken breasts dry and rub with 1 tablespoon olive oil, salt, and pepper. Arrange in 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 processor running, slowly drizzle in olive oil until smooth, vibrant pesto forms. Scrape down sides as needed.
05 - Spread generous layer of lemon basil pesto over each chicken breast, covering tops fully. Reserve remaining pesto for serving.
06 - Bake for 20-25 minutes until internal temperature reaches 165°F and juices run clear.
07 - Let rest 3 minutes. Serve with extra pesto, lemon slices, and fresh basil if desired.