Use a peeler to cut the cucumber in long strips. You can add the cucumber to the serving bowl already.
Crumble the feta cheese on top of the cucumber. Then you can cut the mint leaves (or leave them whole) and add them to the salad. If your mint leaves are a bit brown/old, you can also chop the mint and add it to the dressing.
Finish the dish with the arugula microgreens.
Dressing
Add all ingredients for the dressing to a bowl, and use a whisk to mix everything.
Serve the salad with some bread and the dressing on the side. Looking for a more fulfilling dish? Add some cooked(or steamed) new small potatoes!