Watermelon and Feta Salad with spicy jalapeño balsamic dressing and arugula is a perfect Summer salad.
*If you don't have a very aged balsamic or balsamic glaze, it's easy to make one. Simply buy a really cheap but still 100% balsamic vinegar and cook over medium heat until it reduces to your desired consistency (but at least by ½). And while you're at it, add half a jalapeño pepper to the vinegar while it's boiling. This salad is great with some zip to it. I usually do a cup or two at once and keep the extras on hand to make this a quick weeknight meal.
The addition of chickpeas or cannelini beans makes this a complete meal.