Pat the chicken breasts dry with paper towels, then season generously with salt and pepper on both sides.
Heat the olive oil in a medium skillet over medium heat until it shimmers and just begins to smoke slightly.
Place the chicken breasts into the hot skillet and cook undisturbed for about 5-6 minutes, until the underside is golden and develops a slight crust. Use tongs to flip them carefully.
Cook the chicken on the second side for another 5-6 minutes, until the meat is opaque and a meat thermometer reads 75°C (165°F).
While the chicken finishes cooking, zest a lemon using a microplane, avoiding the bitter pith, and set the zest aside.
Once the chicken is cooked through, transfer it to a plate and let it rest for 5 minutes. This helps keep the juices inside.
Pour out any excess oil from the skillet, then add the minced garlic and cook for about 30 seconds until fragrant, with a gentle sizzling sound.
Squeeze the fresh lemon juice into the skillet, scraping up any browned bits from the bottom. Let it simmer gently for 1-2 minutes until slightly reduced and fragrant.
Return the chicken to the skillet, spooning some of the lemon sauce over the top, then sprinkle with the lemon zest and chopped parsley.
Serve the lemon chicken hot, garnished with extra herbs if desired, alongside your favorite spring vegetables or a light salad.