If salad WERE just iceburg lettuce(eeeuuww), wilted cucumber and soggy tomato...then yes..it's boring as hell. But even the salads of the Romans were more adventurous, as this quote from Wiki says...
" History
Food historians say the Romans ate mixed greens and dressing, and the Babylonians were known to have dressed greens with oil and vinegar two thousand years ago.[3][4][5] In his 1699 book, Acetaria: A Discourse on Sallets, John Evelyn attempted with little success to encourage his fellow Britons to eat fresh salad greens.[6] Royalty dabbled in salads: Mary, Queen of Scots, ate boiled celery root over salad covered with creamy mustard dressing, truffles, chervil, and slices of hard-boiled eggs.[4] "