Fillet the breast meat off being sure to cut out any damage caused by shot.  Marinade overnight in a basic red meat marinade (soy sauce,  vinegar, olive oil,  spices, etc). Wrap in bacon and bbq being careful not to dry out the meat. If it is a really big goose then you may want to cut each breast into two before marinating so it isn't such a big chunk of meat.  This is an easy way to cook them that makes them taste good.  After all,  everything is better with bacon.