Pat the chicken breasts dry with paper towels to remove excess moisture, ensuring a crisp sear. Season generously with salt, pepper, and smoked paprika if using.
Heat a cast iron skillet over medium-high heat until it’s hot and begins to shimmer. Add olive oil, swirling to coat the bottom evenly.
Place the chicken breasts in the skillet, skin-side down if applicable, and cook for about 6-7 minutes until they develop a deep golden crust and release easily from the pan.
Flip the chicken breasts using tongs, then add the minced garlic, chopped herbs, and lemon zest around the chicken. Cook for another 4-5 minutes.
Squeeze lemon juice over the chicken and reduce the heat to medium. Cover the skillet with a lid or foil and cook for an additional 5-6 minutes, checking that the internal temperature reaches 75°C (165°F) with a meat thermometer.
Remove the skillet from heat and transfer the chicken to a plate. Let it rest for 5 minutes so the juices redistribute and the meat stays moist.
Slice the chicken against the grain into thick strips, then spoon some of the pan juices and herbs over the slices for added flavor and aroma.
Serve the citrus herb chicken breasts warm, garnished with extra herbs or lemon slices if desired. Enjoy the bright, juicy flavor and crispy exterior.