Preheat your grill or grill pan to medium-high heat.
Season the 4-ounce chicken breast with your preferred salt, pepper, and any additional spices.
Grill the chicken breast for about 6-7 minutes per side, or until fully cooked and the internal temperature reaches 165°F.
While the chicken grills, preheat your oven to 425°F for roasting the broccoli.
Toss the broccoli florets in 2 teaspoons of olive oil, and season lightly with salt and pepper.
Spread the broccoli on a baking sheet and roast in the oven for about 15-20 minutes, stirring halfway through for even cooking.
Prepare the quinoa as per package instructions if not already cooked. Typically, bring water to a boil, stir in quinoa, cover, and simmer for 15 minutes until fluffy.
Plate the grilled chicken alongside the roasted broccoli and a serving of quinoa, and enjoy your healthy, balanced lunch.