These individual Beef Wellingtons are made with ground beef instead of the traditional beef tenderloin, making them a delicious, yet cost effective, way to serve a special meal to your family and friends.The ground beef is seasoned well, topped with duxelles (a mixture of chopped mushrooms, shallots, garlic, and thyme), neatly folded into thin slices of prosciutto, then wrapped in prepared puff pastry to create beautiful little packages, which are bursting with big flavour.