Prepare the couscous (or other grain of choice) according to the box instructions.
While the couscous is cooking, wash and dry the rest of the fresh ingredients. Finely chop the cucumber, parsley, and crush the almonds.
Then, add the couscous, cucumber, feta cheese, parsley, almonds, and arugula to the salad bowl. Toss together.
In a mason jar, add the dressing ingredients together. I recommend doubling and storing the rest in the fridge for when enjoying the salad. Shake until well combined.
Toss the salad with dressing and serve!