INGREDIENTS:: FOR THE SALAD 1 pt.  grape or cherry tomatoes, halved 1  cucumber, thinly sliced into half moons 1 c.  halved kalamata olives 1/2  red onion, thinly sliced 3/4 c.  crumbled feta FOR THE DRESSING 2 tbsp.  red wine vinegar Juice of 1/2 a lemon …