Cucumbers are an unappreciated vegetable, oftentimes just tossed haphazardly into salads. Recently, Seth and I ordered sandwiches from a deli that seemed promising. Though the thickly-packed sandwiches were a bit lackluster in flavor, we couldn't get enough of the big, fresh chunks of cucumber hidden within. Bright, crunchy, and delicious, this vegetable became the star of the show, and we found ourselves hoping to encounter more cucumber with each bite. In tribute, here is a cucumber sandwich recipe to celebrate its secret awesomeness.