Food Warming Mat

FIG. 1 is a top, front and right side perspective view of a food warming mat, showing my new design; FIG. 2 is a bottom, rear and left side perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; FIG. 9 is an enlarged view of portion 9 in FIG. 1 ; FIG. 10 is an enlarged view of portion 10 in FIG. 2 ; FIG. 11 is an enlarged view of portion 11 in FIG. 4 ; and, FIG. 12 is an enlarged view of portion 12 in FIG. 5 . The evenly dashed broken lines illustrate features of the food warming mat that form no part of the claimed design. The unevenly dashed broken lines define the boundaries of enlarged views and form no part of the claimed design.