Preheat the grill or grill pan to medium-high heat.
Season the chicken breast with salt and pepper. Optionally, add other favorite spices for extra flavor.
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 is grilling, preheat your oven to 400°F for roasting the broccoli.
Toss the broccoli with olive oil, salt, and pepper, then spread it out on a baking sheet.
Roast the broccoli in the oven for 15-20 minutes, stirring halfway through, until it is tender and lightly browned.
Cook the quinoa according to package instructions. Typically, combine 0.25 cup of dry quinoa with water, bring to a boil, then simmer for about 15 minutes until the water is absorbed.
Plate the quinoa as a base, then layer the roasted broccoli, and finish with the sliced grilled chicken breast on top.
Serve warm and enjoy a protein-packed, balanced lunch.