Preheat your oven to 400°F.
Pat the chicken thigh dry, then season both sides generously with salt and pepper.
Heat a skillet over medium-high heat and add olive oil. Once shimmering, place the chicken thigh skin-side down and sear for about 4-5 minutes until the skin is crisp and golden.
Flip the chicken and cook for an additional 4 minutes. If thicker, finish cooking in the oven for an additional 5-7 minutes.
While the chicken is cooking, toss the chopped broccoli with a drizzle of olive oil, a pinch of salt and pepper, and spread it onto a baking sheet.
Roast the broccoli in the oven for about 12-15 minutes, until it becomes tender and starts to develop a slight char.
Warm the pre-cooked quinoa or prepare it according to package directions if not already cooked.
Plate the quinoa as a base, top with the seared chicken thigh, and arrange the roasted broccoli on the side.
Finish with a squeeze of fresh lemon juice from the lemon wedge over the chicken and broccoli for a bright, fresh note.