Preheat your grill or grill pan to medium-high heat.
Season the 4 ounces of chicken breast with your favorite salt, pepper, and a squeeze of lemon if desired.
Grill the chicken for about 6-7 minutes per side until fully cooked and juices run clear.
While the chicken is cooking, preheat your oven to 425°F for the broccoli.
Toss the broccoli with a drizzle of olive oil, salt, and pepper, then spread evenly on a baking sheet.
Roast the broccoli in the preheated oven for 15-20 minutes, until edges are crisp and slightly browned.
Prepare quinoa according to package instructions, typically combining rinsed quinoa with water, bringing to a boil, then simmering until fluffy.
Plate the grilled chicken alongside the quinoa and roasted broccoli. Drizzle the remaining olive oil over the dish if desired for extra flavor.
Serve warm and enjoy your nutrient-packed lunch.