01 - Preheat the oven to 400°F. Lightly grease a baking dish with olive oil or cooking spray.
02 - In a small bowl, combine the softened goat cheese, chives, parsley, garlic, lemon zest, 1/4 tsp black pepper, and a pinch of salt. Mix until smooth and creamy.
03 - Using a small sharp knife, make a deep horizontal pocket in each chicken breast, being careful not to cut all the way through.
04 - Carefully spoon the goat cheese mixture into each pocket, filling generously. Secure the openings with toothpicks if needed.
05 - Rub the outside of each stuffed chicken breast with olive oil, then season evenly with 1/2 tsp salt, 1/2 tsp black pepper, and paprika if using.
06 - Place the stuffed chicken breasts in the prepared baking dish. Bake uncovered for 25 to 30 minutes, until the chicken is cooked through and the juices run clear.
07 - Remove from the oven and discard any toothpicks. Let the chicken rest for 5 minutes before serving.