Question edited for typo.
It doesn't look like there are any spares, but you may be able to find an oven door or microwave handle that will fit if you can get the distance between the screws right. If not, you can replace with two round knobs in wood or heat proof ceramic / plastic. Click on the images tab to see lots
https://www.google.com/search?q=ge+roaster+lid+handle
..
Dear Louise,
Please type this information into the search engine of your computer, and you should find a list of dealers who will help you with this request.
God bless your efforts.