Green beans, yellow beans, beans!!! All good for your gliders, all healthy for YOU! Of course, fresh is always better, but you can find frozen green beans in the freezer section of your grocery store to have on hand in a pinch. No canned, though, these are never good to feed.
Look for nice, firm beans, those without spots, if possible. You can toss them whole, into the mix. Or, chop them into pieces, your choice. Either is fine, but know that your gliders will enjoy ripping the shells off and eating the goodness that’s inside :).