The McSurf n' Turf (or simply Surf n' Turf) is a combination burger/fish sandwich available at McDonald's. It is a McBurger Supreme with a Filet-O-Fish fish fillet as a second protein on the sandwich. Tartar sauce substitutes for the mayo.
How to OrderEdit
If the staff do not recognize the name, describe the sandwich as a McBurger Supreme, substitute the mayo for tartar sauce, and add an extra fish fillet.
Some McDonald's locations define a Surf n' Turf as a Quarter-Pounder with a fish fillet.