Anyone ever seen this meat around? I've had it in Italy (stracotto d'asino aka musso is a specialty of the Veneto countryside) and it was great.
I wouldn't be at all surprised if this is unavailable, but I do find one sighting of donkey stew, from 2004:
Typically, Bergamesque cuisine is on the heavy side because of the severe winters of the Italian Alps. Perhaps the most famous dishes are the many types of polenta preparations -- for example, grilled and served with salami, braised meats, or donkey stew (!).
Of course, none of the food listed above is very appropriate for a hot August evening. Perhaps, then, it is not too surprising that there aren't many Bergamesque offerings currently on La Strada's menu -
From my reading it wasn't a sighting but a recitation of Bergamesque specialties.