Preheat your oven to 400°F and line a baking sheet with parchment paper.
Toss the broccoli florets with one teaspoon of olive oil, salt, and pepper, then spread them in a single layer on the baking sheet.
Roast the broccoli for 15-20 minutes until the edges are tender and slightly charred.
Season the chicken breast with salt, pepper, and dried herbs of your choice.
Heat a grill or grill pan over medium-high heat and lightly coat with a small amount of oil.
Grill the chicken for 6-7 minutes per side or until the internal temperature reaches 165°F.
While the chicken rests, fluff the cooked quinoa and toss it with the remaining teaspoon of olive oil and a pinch of salt.
Slice the chicken and serve alongside the quinoa and roasted broccoli, finishing the dish with a fresh squeeze of lemon juice.