Perfect for a busy weeknight or Sunday afternoon, this Easy Grilled Romaine Salad is so flavorful. Use a store-bought balsamic vinaigrette to marinate the vegetables, and then grill them to bring out their flavor even more. Gorgonzola tastes great sprinkled on top, but you may substitute feta, Parmesan or goat cheese if you wish. Feel free to add grilled chicken, steak or shrimp for a main-dish salad. Serve with some crusty bread and olive oil, and dinner is ready.