Pat the chicken breast dry with a paper towel and season both sides with sea salt, black pepper, and finely chopped fresh rosemary.
Heat 1 teaspoon of extra virgin olive oil in a medium non-stick skillet over medium-high heat.
Place the chicken in the skillet and sear for 5 to 7 minutes per side, or until the internal temperature reaches 165°F and the exterior is golden brown.
While the chicken is cooking, place the asparagus spears in a steamer basket over boiling water for 3 to 4 minutes until they are bright green and crisp-tender.
Remove the chicken from the pan and set it aside on a plate to rest for at least 2 minutes.
In the same skillet used for the chicken, reduce heat to low and add the remaining teaspoon of olive oil and the minced garlic, sautéing for 30 seconds until fragrant.
Whisk in the fresh lemon juice and lemon zest into the garlic oil to create a light pan sauce.
Slice the chicken breast into strips and toss them back into the skillet briefly to coat with the lemon-garlic sauce.
Arrange the cooked quinoa on a plate, top with the lemon chicken, and serve alongside the steamed asparagus.