Arugula & Citrus Salad With Quinoa, Pistachios & Feta Recipe

1 bag of organic arugula
1 navel orange, segmented
1 pink grapefruit, segmented
1 persian cucumber, sliced
4 scallions, diced
3 sprigs of mint, chopped
1/3 cup crumbled feta
1/3 cup hulled pistachios, coarsely chopped
1 cup of cooked organic quinoa

Dressing:

Juice of 1 Meyer lemon
3 tbs olive oil
3 tbs apple cider vinegar
1 tsp dijon mustard