HFPMA Beef Osso Buco. The Osso Bucco is a specialty cut from the shank of the beef.  It is a thick cut weighing 1.75-2.25lbs that contains the marrow bone and becomes very flavorful and tender when braised.  Helios Farms beef is from free to roam Grass-Fed and Grass Finished cattle raised on unsprayed, non-GMO pasture forage, hay, haylage, and alfalfa, using no pharmaceutical products, antibiotics, hormones, vaccines, or agricultural chemicals.