Pat the chicken dry with paper towels and season both sides lightly with kosher salt and cracked black pepper. Pounding the breast to an even thin thickness (about 1/4–1/2 inch) ensures it cooks quickly and evenly; moisture on the surface prevents a good sear, so drying first promotes browning.

In a small bowl, whisk together the 1 tablespoon olive oil, 1 tablespoon lemon juice, 1 teaspoon lemon zest, and the minced garlic. Reserve about 1 teaspoon of this mixture for finishing the rice. The acid in lemon brightens flavor and the oil helps carry aromatics; letting garlic sit briefly in the oil mellows its edge while infusing flavor.

Toss the halved Brussels sprouts with a pinch of salt, a grind of pepper and 1/2 tablespoon of the lemon‑garlic mixture. Heat a medium skillet (preferably cast iron) over medium-high heat until just smoking, then add the Brussels cut-side down. Press them gently so the cut surface contacts the pan — this gives immediate caramelization. Cook without moving for 3–4 minutes until deeply browned, then flip and cook 2–3 minutes more until tender-crisp. High heat creates Maillard browning which develops the savory, nutty flavor that makes the sprouts sparkly and restaurant-quality.

Transfer the Brussels to a plate, leave the pan hot and wipe out any large burned bits if necessary (small fond is good for flavor). Add the pounded chicken to the hot pan and sear for 2–3 minutes on the first side undisturbed until a deep golden crust forms. Flip and cook another 1.5–2 minutes. Searing on high heat creates a caramelized crust (Maillard reaction) that concentrates flavor and seals juices. Because the breast is thin, it cooks very quickly—watch closely to avoid drying out.

Reduce heat to medium-low and add the remaining lemon‑garlic oil to the pan around the chicken; tip the pan slightly and spoon a little over the top for flavor and moisture. If you have an instant-read thermometer, check for an internal temperature of 74°C (165°F). If the chicken needs another minute, cook briefly; the quick sear plus short finish keeps the meat tender.

Remove the chicken to a cutting board to rest for 4–5 minutes—resting allows juices to redistribute; cutting too soon causes them to run out and the meat to dry. While the chicken rests, return the skillet to medium heat, add the cooked rice and the reserved teaspoon of lemon‑garlic oil. Press the rice into the hot pan and let it sit without stirring for 1–2 minutes to get a touch of char and warm through. Toss with chopped parsley, finish with the lemon zest, and season to taste. Slightly toasting the rice in the pan adds texture and a faint smoky note that complements the charred sprouts.

Slice the rested chicken crosswise into ribbons. Build the bowl: spoon the lemon‑herb rice into a bowl, arrange the charred Brussels on one side and the sliced chicken atop. Drizzle any pan juices over the chicken, sprinkle with remaining parsley, and finish with a light squeeze of lemon if desired. The contrast of textures—crispy char, tender chicken, and fluffy rice—plus a bright lemon finish is what makes this bowl special.

Taste and adjust seasoning with salt and pepper. Serve immediately so the chicken is warm and the charred edges keep their texture.