Preheat your grill or grill pan to medium-high heat.
Season the chicken breast with your preferred spices (salt, pepper, and a sprinkle of garlic powder work well) and lightly brush with a tiny bit of olive oil if desired.
Grill the chicken breast for about 6-7 minutes per side until fully cooked and slightly charred on the outside.
Meanwhile, if not already prepared, cook the quinoa according to package instructions. Once cooked, fluff with a fork.
Cut the broccoli into florets, toss with a little olive oil, salt, and pepper. Roast in a preheated 425°F oven for about 15-20 minutes until tender and slightly crispy at the edges.
Plate the grilled chicken alongside the quinoa and roasted broccoli, and drizzle the remaining olive oil over the broccoli for extra flavor.
Serve warm and enjoy your nutritious, balanced lunch.