Make the vinaigrette. In a small mason jar, combine the olive oil, lemon juice,garlic, Dijon mustard, salt and pepper. Shake vigorously for 30 seconds to emulsify.
Cook quinoa according to packaging and let it cool down. Then dress thequinoa. Place the cooked quinoa in a large bowl and drizzle half of the lemondressing on top. Stir to combine.
Add the prepared vegetables. Add the cherry tomatoes, cucumbers, kalamataolives, chickpeas, and red onion. Toss together with the remaining dressing.
Finish with feta and greens: Add in the crumbled feta cheese and Italian parsley(or rocket). Give it a gentle toss (so as not to wilt the greens), taste forseasoning and add in if necessary.
Serve warm, cold, or at room temperature.