This cucumber sandwich at Bagel Plaza of South Merrick has people running in to try it. A tuna vegetable mixture and sliced red onion get placed on a scooped out cucumber for a crunchy and refreshing taste, a big difference from traditional sandwiches. #longisland #longislandny #liny #longislandnewyork #trendybites #nassaucountyny #nassaucounty #southmerrick #merrick #merrickny #bagelplazasouthmerrick #cucumbersandwich #cucumber #bagelstore #bagelshop #tuna #vegetable #food #trending #viral #trendingfood