Food container

The design is features of shape, configuration, pattern and ornament of the food container as shown in the drawings. The broken lines shown in the drawings form no part of the claimed design. Drawings of the design are included wherein: FIG. 1 is a perspective view of a food container showing a first variant of the design; FIG. 2 is an exploded perspective view of the food container of FIG. 1 showing a food container lid portion removed from a food container bowl portion; FIG. 3 is a top plan view of the food container of FIG. 1; FIG. 4 is a side elevation view of the food container of FIG. 1, an opposite side elevation view being a mirror image thereof, a front elevation view being identical to the side elevation view, and a rear elevation view being a mirror image of the front elevation view; and FIG. 5 is a bottom plan view of the food container of FIG. 1.