Preheat your oven to 400°F and line a baking sheet with parchment paper.
Toss the broccoli florets with 1/2 tablespoon of olive oil, salt, and pepper, then roast for 15-20 minutes until the edges are slightly charred.
Season the chicken breast with salt, pepper, and your favorite dried herbs.
Heat a grill pan or skillet over medium-high heat with 1/2 tablespoon of olive oil and cook the chicken for 5-7 minutes per side until cooked through.
While the chicken and broccoli cook, whisk together the tahini, lemon juice, minced garlic, and the remaining 1/2 tablespoon of olive oil, adding a splash of warm water if needed to reach a drizzling consistency.
Slice the grilled chicken into strips.
Assemble the bowl by placing the cooked quinoa at the base, then topping it with the roasted broccoli and sliced chicken.
Drizzle the lemon tahini sauce over the entire bowl and serve immediately.