Preheat your grill or grill pan over medium-high heat.
Lightly season the chicken breast with salt, pepper, and your choice of herbs.
Grill the chicken breast for about 6-7 minutes per side, or until fully cooked and juices run clear.
While the chicken is grilling, preheat your oven to 425°F for the broccoli.
Toss the broccoli with olive oil, salt, and pepper. Spread it on a baking sheet in a single layer.
Roast the broccoli in the oven for 15-20 minutes until tender and slightly crispy on the edges.
Prepare cooked quinoa according to package instructions if not already prepared.
Plate the dish by placing the quinoa as a bed, topping it with sliced grilled chicken, and arranging roasted broccoli on the side.
Serve warm and enjoy your nutritious, balanced lunch.