Preheat your grill for the chicken and your oven to 425°F for the broccoli.
Season the chicken breast lightly with salt, pepper, and any complementary herbs of your choice.
Place the chicken on the grill and cook for 6-7 minutes per side, or until the internal temperature reaches 165°F.
Meanwhile, toss the broccoli with 1 teaspoon of olive oil, salt, and pepper. Spread on a baking sheet in a single layer.
Roast the broccoli in the preheated oven for 15-20 minutes, stirring halfway through for even cooking.
Prepare the quinoa according to package instructions if not already cooked.
Plate a portion of quinoa, top with sliced grilled chicken, and add the roasted broccoli on the side.
Serve warm and enjoy your balanced, nutrient-rich lunch.