Preheat your grill or grill pan to medium-high heat.
Season the chicken breast with your favorite spices, such as salt, pepper, and a squeeze of lemon if desired.
Grill the chicken breast for about 6-7 minutes per side, or until the internal temperature reaches 165°F.
While the chicken is grilling, preheat your oven to 425°F to roast the broccoli.
Toss the broccoli with 1 teaspoon of olive oil, and season with a pinch of salt and pepper.
Spread the broccoli on a baking sheet and roast in the oven for 15-20 minutes until tender and slightly crispy.
Heat the cooked quinoa in a saucepan or microwave until warm.
Plate the quinoa as a base, top with the grilled chicken breast, and add the roasted broccoli on the side.
Serve immediately and enjoy your balanced and nutritious lunch.