Welcome to Greek Island Diner A homey restaurant serving unpretentious American fare, breakfast & a few Mediterranean options. We are conveniently located at 6324 NY-25A in Wading River, NY 11792. Planning an event can be time consuming and stressful, but it doesn’t have to be. With Greek Island Diner catering service, your event is sure to go off without a hitch. We offer a huge selection of food to treat your guests to. From salads and seafood dishes to beef and Greek pasta dishes, we offer items everyone will love. We make it easy for you to offer delicious food for any event, no matter how many guests you have. With our app, you'll now be able to place an order easier & faster!