Preheat your grill or grill pan over medium-high heat.
Season the chicken breast lightly with salt, pepper, and your favorite herbs.
Grill the chicken for 5-6 minutes per side, or until fully cooked and internal temperature reaches 165°F.
While the chicken is grilling, preheat your oven to 425°F for roasting the broccoli.
Toss the broccoli florets with olive oil, salt, and pepper, and spread them out on a baking sheet.
Roast the broccoli in the oven for about 15 minutes, or until tender and slightly crispy on the edges.
Prepare the quinoa according to package instructions if not already cooked.
In a small bowl, whisk together tahini and lemon juice to form a light dressing.
Plate the grilled chicken alongside the quinoa and roasted broccoli, and drizzle the lemon-tahini dressing on top.
Serve immediately and enjoy your balanced, nutritious lunch.