Marinate chicken in lemon juice, salt and pepper.
Spritz a pan with cooking spray. On medium-high heat, brown chicken on both sides.
In a food processor or blender, add all pesto ingredients and blend until smooth.
Spritz a glass baking dish with cooking spray and add a little pesto to the bottom of the dish. Add browned chicken and top with remaining pesto.
Bake at 350°F for 20 minutes or until chicken is cooked through.