This veggie sandwich is a twist on a classic salad. Start by mashing chickpeas with a fork and mixing them with diced celery, red onion, and a dollop of Greek yogurt. Season with salt, pepper, and a squeeze of lemon juice. Spread the chickpea salad on whole grain bread and top with lettuce, sliced tomatoes, and cucumber. This sandwich is not only crunchy and satisfying but also provides a good source of plant-based protein and fiber from the chickpeas.