Preheat your grill or grill pan over medium-high heat.
Season the chicken breast lightly with salt, pepper, and your choice of herbs.
Grill the chicken for about 6-7 minutes per side until fully cooked and nicely charred.
While the chicken is grilling, cook the quinoa according to package instructions, typically simmering for 15 minutes until fluffy.
Steam or roast the broccoli: if roasting, toss the broccoli with a teaspoon of olive oil, salt, and pepper, and roast in a preheated oven at 425°F for about 15 minutes until tender and slightly crispy.
Plate the dish by laying a bed of quinoa, topping it with sliced grilled chicken, and arranging the roasted broccoli on the side.
Drizzle any remaining olive oil over the broccoli if desired, and serve warm.