This 5-star shrimp and orzo recipe has simple ingredients, but it is full of flavor. Parmesan cheese works in this dish, too, if you don't have pecorino Romano on hand. Serve leftovers as a great cold pasta salad for lunch.
For a light entree on a summer night, this dish is just the ticket. Salting and draining the zucchini and tomatoes before baking prevents them from releasing excess moisture as they bake, so the gratin stays firm, not soggy.