Ground beef, onions, bread crumbs, egg, toasted walnuts, parmesan and cheddar, salame, and tons of herbs from the garden (celery, parsley, marjoram, chives, mint). More cheese and bread crumbs for the top. Coarse sea salt for the finish.
Brown the meat and onions, mix with other ingredients. Parboil the zukes, whole, then plunge into cold water. Drain, then slice lengthwise. Stuff the zukes, put more cheese and breadcrumbs on top, line up in a baking pan, bake at 350° about 45 - 60 minutes. Put a little broth into the pan to keep them from getting too dry.