Preheat your oven to 400°F.
In a small bowl, mix the lemon juice, olive oil, mixed dried herbs, salt, and pepper.
Coat the chicken breast with the lemon herb mixture, ensuring it's well-seasoned.
Heat a non-stick skillet over medium-high heat and sear the chicken breast for about 2 minutes on each side until golden.
Place the seared chicken in a baking dish, and transfer it to the oven to finish cooking for 10-12 minutes or until the internal temperature reaches 165°F.
Meanwhile, toss the asparagus with a pinch of salt, pepper, and a drizzle of olive oil, then spread them on a baking sheet.
Roast the asparagus in the oven for 10 minutes until tender and slightly crispy.
Prepare the quinoa as per package instructions if not pre-cooked, or reheat gently if already cooked.
Plate the chicken alongside the fluffy quinoa and roasted asparagus, and drizzle any remaining lemon herb sauce over the top.
Serve immediately and enjoy your flavorful, balanced meal.