Preheat your grill to medium-high heat.
Season the chicken breast with a pinch of salt and black pepper.
Lightly brush the chicken with a small amount of olive oil.
Grill the chicken for about 6-7 minutes per side or until fully cooked with an internal temperature of 165°F.
While the chicken is grilling, preheat your oven to 400°F.
Cut the broccoli into florets, toss with the remaining olive oil, salt, and pepper, and spread evenly on a baking sheet.
Roast the broccoli in the oven for 15-20 minutes, until tender and slightly crispy on the edges.
Prepare the quinoa according to package instructions or if pre-cooked, gently reheat it.
Plate the grilled chicken with the roasted broccoli and a serving of quinoa.
Serve warm and enjoy your balanced, protein-packed lunch.