Gorgonzola is a cow's-milk cheese with bluish-green veins, similar in flavor and appearance to other blue cheeses. If you don't have Gorgonzola, any other blue
cheese, such as Roquefort, Stilton or Maytag, would be a good substitute.
The onions can be cooked and refrigerated up to 48 hours ahead of time and reheated in a microwave oven. Assemble the appetizers just before broiling.
Arrange these tasty appetizers on a pretty platter, and garnish with fresh parsley or another favorite herb. Add a variety of marinated olives from the deli.