Garnishes of lettuce, onions and tomatoes, as well as salt, pepper and ketchup, are inserted into a cavity in a 'sandwich delivery tool'.
The 'bread component' is placed over the cavity and the assembly tool is inverted to tip out the contents. Finally, the filling is placed in the 'bread component'.
Just thought you all might want to know. Oh, and a guy from the UK Patent Office says it isn't likely to happen. (Via Dig.)