A refreshing and crisp Fennel Apple Salad featuring thinly sliced fennel bulbs, sweet red apples, peppery arugula, toasted walnuts, and sharp pecorino or parmesan cheese, all tossed in a tangy lemon and olive oil dressing. This easy-to-make salad offers a perfect balance of textures and flavors, ideal for a light lunch or a vibrant side dish.