Beef Wellington

Beef Wellington is a baked steak dish of English origin, made out of fillet steak and duxelles wrapped in shortcrust pastry. Some recipes include wrapping the contents in prosciutto, or dry-cured ham, which helps retain moisture while preventing the pastry from becoming soggy; use of puff pastry; and/or coating the beef in mustard. Classical recipes may include pâté. A whole tenderloin may be wrapped and baked, and then sliced for serving, or the tenderloin may be sliced into individual portions before wrapping and baking.

Source: Wikipedia