FIG. 1 is a top right front perspective view of a food container lid tab showing my new design. The broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view thereof; the rear elevational view being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational thereof; the left side elevational view being a mirror image; and,

FIG. 5 is a bottom plan view thereof.

The broken line showing of a lid in FIGS. 1-5 is for illustrative purposes only and forms no part of the claimed design.