Most river cruise lines design their culinary offerings to reflect regional cuisine along the rivers. Enjoy fresh local seafood in Belgium, France and Portugal, for example. If you love cheese, pork and sausages, the menus along the Rhine and Danube in Germany, Austria and Switzerland are sure to please. Cruise into Eastern Europe on the Southern Danube to get to know the favorite foods of Hungary, Croatia, Serbia, Bulgaria and Romania. Of course, more familiar fare (chicken, salmon, hamburgers and steaks) as well as vegetarian options are also available.