If portions are small or if you can ask for a small portion, it could be fun on a cruise to order a meal with both fish and meat courses, essentailly to create something more like a sampling menu for yourself from an a la carte menu.....or one could reasonably ask for an appetizer potion of pasta (after the usual appetizer) to be followed by a main course of meat or fish. You couldn't easily do this in most restaurants, but it should be one of the advantages of an "all inclusive" restaurant.