Preheat your oven to 400°F.
In a bowl, combine lemon juice, olive oil, mixed fresh herbs, salt, and pepper.
Pat the chicken breast dry, then coat it with the lemon herb mixture.
Heat a non-stick skillet over medium-high heat and sear the chicken for 2-3 minutes per side until golden to create a crispy exterior.
Place the seared chicken on a baking sheet.
Toss the asparagus with a little extra olive oil, salt, and pepper, and arrange them around the chicken on the baking sheet.
Roast in the oven for 12-15 minutes until the chicken is cooked through (internal temperature of 165°F) and the asparagus are tender.
Reheat the pre-cooked quinoa if needed, or fluff it with a fork and season lightly.
Plate the chicken, asparagus, and quinoa together, drizzle any remaining pan juices over, and serve immediately.