Plate having a bottom wall having an outer perimeter, an upper surface, and a lower support surface defining a horizontal reference plane. The plate further includes a sidewall extending upwardly and outwardly from the outer perimeter at an angle “a” of between about 30° to about 35° relative to a vertical axis perpendicular to the horizontal reference plane. Extending laterally outwardly from an upper edge of the sidewall is a rim. Extending downwardly from an outer edge of the rim and terminating at a free end is a turndown flange. The plate comprises a monolithic structure of polyethylene terephthalate foam. Method of forming the plate is also provided.