PROBLEM TO BE SOLVED: To provide a covering material for cover-sealing the opening of a housing concave portion in a packaging container and a packaged frozen food not damaging the housing concave portion.SOLUTION: A packaged frozen food is characterized by housing a frozen food, having a spherical arc face shape or ellipsoidal arc face shape in the bottom portion, in one or more housing concave portions of packaging container having a flat bottom surface with opened upper portions, or in a cup arranged in the housing concave portions of the packaging container, in a state in contact with a part of the bottom portion of the frozen food with the flat bottom surface of the housing concave portion, and then cover-sealing the upper opening of the housing concave portion with a filmy or sheet-like covering material.
