Unitized serving base with imperforate pellet

DETAILED DESCRIPTION A food-warming serving dish comprises a shaped upper wall having a radially outward periphery, an outwardly-upwardly inclined side portion just inwardly of the periphery, and a generally flat central portion.
A lower wall is sealingly joined to the upper wall about the periphery therof and is spaced vertically from the upper wall throughout the side and central portions.
A layer of heat-insulating material is placed between the upper and lower walls.
An imperforate unitized pellet of high heat-absorbency is placed between the insulating material and the upper wall.
The pellet has a thin, raised peripheral flange about its perimeter which contacts an undersurface of the inclined side portion of the upper wall, the flange centering the pellet in the base without its being rigidly affixed thereto.
The pellet further has a raised central portion to underlie and contact a raised central portion of the upper wall, the parts contacting along a radially-outwardly downward step in the pellet to assist in centering the pellet upon the upper wall of the base.
The lower surface of the pellet is substantially flat and has no contact with the lower wall.