oooopps!! I think that my microwave plate must be a replacement or something becuase it's made by Rubbermaid and as my Mom pointed out, Rubbermaid doesn't make microwaves! Apparently it's plastic because I melted a hole in it and when I went to take the bag out of the microwave, it stuck to the tray!
Yet another "only Hillary...." moment! never a dull moment with me in the kitchen as my Mom loves to say! :)