Slimy green onions are gross and such a disappointment when you were expecting them to still be fresh.
I’ve tried multiple ways to store them and this is what works the best for me:
Put them in a jar/glass with a little bit of water (it shouldn’t extend into the green part, keep it within the white part), cover it with a gallon-sized ziplock bag, and put it all in the fridge.
This is the only way I’ve been able to consistently keep green onions pretty fresh for over a week.
Cook Like Chuck 