In general, non-meat, non-dairy food wastes are acceptable worm foods. This article is also helpful in describing acceptable worm foods. Also, check out the image at the bottom of this article!

It's extremely important to continually add carbon-rich bedding like shredded paper, cardboard, coco coir, peat moss, leaves etc to a worm bin This helps with moisture control and keeping your bin from emitting foul odors.