Yes you can chop and freeze them but they will be good for cooking only as they will be mushy when thawed. Make a good pizza topping.

You can also chop and dehydrate them. Or if you do any canning they can be used in canning recipes as a sub for regular onions.

Dave

I just did this with my multiplying onions recently. I chopped them up as green onions and packed them into 4 oz canning jars for the freezer. I wasn't sure how they would do, but when I needed them for soups and casseroles, they worked perfectly. As Dave said, they will be too mushy to use the same as fresh, but freezing them certainly extended my harvest!

Love the idea of jars. Less odor.

I try to use the straight sided canning jars for a lot of things in the freezer, both to avoid as much plastic as possible, plus it saves money on freezer bags! The 4-oz size is perfect for small things like the green onions, horseradish, lemon & orange zest, and other things that are products of what we grow, but don't use a large quantity at one time, or isn't feasible to can.

One time I used a sweet relish recipe with green onions as the vegetable (instead of peppers or cucumbers). I chopped them up, measured them out by weight instead of by the cup, and followed the same recipe as I usually use with peppers. The stuff turned out great, had a nice oniony flavor, and was good in sandwiches, tuna salad, hot dogs, etc. It was a great relish.

That's a great idea! I think I would love that. Thank you!

I chop up my extras, lay them out on parchment covered cookie sheets and pop them into the freezer. When they are all frozen I put them in a Food Saver bag for the freezer. Whenever I need some I cut the bag, pour out just what I need, no sticking together, then use the Food Saver bag again and back into the freezer for the next time. I think glass jars take up too much space for a small amount like little 4oz sizes but in a quart jar they would take up less space, but, I prefer the plastic freezer bags because they are lightweight and space saving and I can line them up vertically in a shoe box in the freezer.