Preheat your grill to medium-high heat. Meanwhile, season the 5 oz chicken breast with salt, pepper, and any preferred herbs.
Lightly coat the chicken breast with half of the olive oil (1 tsp) as a marinade.
Grill the chicken breast for about 6-7 minutes per side or until the internal temperature reaches 165°F. Once done, set aside to rest for a few minutes.
While the chicken is grilling, prepare the quinoa. If not already cooked, rinse ½ cup of quinoa under cold water and combine with water (using a 1:2 ratio) in a small pot. Bring to a boil, then cover, reduce heat, and simmer for about 15 minutes until the liquid is absorbed. Fluff with a fork.
Preheat your oven to 425°F. Toss 1 cup of broccoli florets with the remaining 1 tsp of olive oil, a pinch of salt, and pepper. Spread the broccoli evenly on a baking sheet.
Roast the broccoli in the oven for about 15-20 minutes until tender and slightly crispy on the edges.
Plate the dish by slicing the grilled chicken breast, and serving it alongside the cooked quinoa with a generous helping of roasted broccoli. Enjoy your balanced and nourishing lunch!