Prepare the dressing - in a small bowl, whisk together the olive oil, vinegar, Dijon mustard, salt, and pepper until well combined. Set aside.
Assemble the salad - reserve a tablespoon of the chopped parsley for a garnish. Then, in a large mixing bowl, combine the cooked quinoa, chickpeas, crumbled feta cheese, chopped cucumber, chopped chives and the remaining parsley.
Dress the saladand add beetroot - drizzle the dressing over the salad and toss gently to combine. Then add the beetroot and toss once more. Try not to over-mix or the beetroot may turn everything purple! Taste and add more salt and pepper if required.
Serve - serve the salad on a bed of mixed lettuce leaves with the reserved parsley sprinkled on top.
Notes
Storage Instructions: Eat immediately or store the salad in the fridge in an airtight container for up to two days.