Closable food container body and utensil enclosing cover assembly

A closable container comprising:

• a container body, substantialy rectangular in outline, including a bottom wall and four upstanding sidewalls joined by bottom corners to said bottom wall and by upstanding corners to each other, each of said upstanding corners being rounded, the upper edges of said upstanding sidewalls and corners circumscribing a container opening and having a continuous seating formation to define, in vertical section, an interior concave surface extending upwardly from a plane spaced below the top edge of said upstanding sidewalls and corners to an outwardly projecting peripheral body flange at the top edge of said upstanding walls and corners;
• a cover having a central panel and a peripheral edge formation to seal within said seating formation, said edge formation having an edge wall portion depending from an outwardly projecting cover flange, said edge wall portion having, in vertical section, an exterior convex surface;
• said seating formation and said edge formation being generally square in outline in which the sides of said outline are cambered outwardly and joined at rounded corners, thereby to provide for development of opposing tensile and compressive hoop stresses in said seating formation and said peripheral edge formation, respectively upon insertion of said cover into said seating formation so that said exterior convex surface nests within and seals against said interior concave surface continuously about said container opening;
• means defining a utensil recess in said central panel and extending diagonally of said cover, said recess having a floor joined to and circumscribed by marginal sidewalls spaced from said peripheral edge formation;
• and
• means for releasably retaining a utensil in said recess.