Preheat your oven to 400 degrees F. In a small saucepan, combine the dry quinoa and water. Bring to a boil over high heat, then reduce to low, cover, and simmer for 15 minutes until the water is absorbed and the grains are fluffy.
While the quinoa is simmering, season the chicken breast evenly on both sides with the sea salt, black pepper, and dried rosemary.
On a parchment-lined baking sheet, toss the asparagus spears with 0.5 tablespoons of extra virgin olive oil, the minced garlic, and the fresh lemon juice.
Roast the asparagus in the oven for 10-12 minutes until they are bright green and tender with slightly charred tips.
While the asparagus roasts, heat the remaining 0.5 tablespoons of olive oil in a skillet over medium-high heat.
Add the chicken breast to the skillet and sear for 6-7 minutes per side until the exterior is golden brown and the internal temperature reaches 165 degrees F.
Slice the chicken breast into strips and serve it over a bed of the fluffy quinoa, with the roasted lemon-garlic asparagus arranged on the side.