Cubes of sweet watermelon, chunks of crunchy celery, and savory feta cheese — this hybrid between fruit salad and savory salad has lazy lunch written all over it. Whole wheat couscous provides a nourishing base — it needs no cooking, just a few minutes of steaming. What’s not to love? To make this salad into a full meal, grilled chicken or shrimp are a perfect match. Or add a plate of dry-cured prosciutto and a bowl of olives alongside your bowl, and call it a day.