The Greek kitchen abounds with luscious "country" recipes for stuffed onions, an economical dish that requires a little time. This particular rendition os from Galaxidi, a coastal area on the mainland side of the Corinth Canal. It makes a beautiful dinner party treat, as an opener or, even, as a main course. There are vegetarian renditions of stuffed onions, too. Look for large red onions. They have a robust flavor and look better than pale yellow onions when cooked.