A plateau de fruits de mer (French for 'shellfish platter') is a seafood dish of raw and cooked shellfish served cold on a platter, usually on a bed of ice.
The serving platter is often held above table level by a stand, and sometimes can contain multiple, elaborate tiers. This is both for visual effect, and because the shellfish are often served in the shell, or on the half shell, which causes them to take up a large area while containing only a bite or two of meat. It can alternatively be served on a bed of seaweed (vraic).