Preheat your grill or grill pan to medium-high heat.
Pat the chicken breast dry and season lightly with salt, pepper, and your choice of herbs.
Grill the chicken breast for about 6-7 minutes on each side, or until fully cooked and the internal temperature reaches 165°F.
While the chicken is grilling, cook quinoa according to package instructions. Typically, bring water to a boil, add quinoa, reduce heat, cover, and simmer for 15 minutes until water is absorbed.
Preheat your oven to 425°F. Toss broccoli with olive oil, salt, and pepper. Spread evenly on a baking sheet.
Roast the broccoli for 15 minutes until the edges are slightly crispy.
Plate the grilled chicken with a serving of quinoa and roasted broccoli. Drizzle any remaining olive oil from the roasting pan over the dish if desired and serve warm.