Season the chicken breast with sea salt, black pepper, and garlic powder on both sides.
Heat a non-stick skillet over medium-high heat with a light spray of oil and cook chicken for 6-7 minutes per side until golden and cooked through.
While the chicken cooks, dice the cucumber into small cubes and halve the cherry tomatoes.
Finely chop the fresh parsley and mint leaves.
In a small bowl, whisk together the extra virgin olive oil and fresh lemon juice to create the dressing.
Once the chicken is done, let it rest for 5 minutes to keep it juicy, then slice into bite-sized cubes.
In a large mixing bowl, combine the cooked quinoa, diced cucumber, halved tomatoes, and chopped herbs.
Add the chicken to the bowl and drizzle with the lemon vinaigrette.
Toss everything together until well combined and serve immediately.