how long can home frozen onions be kept in the freezer?

Answer 1

Will keep 3-6 months depending on useage:
Bag and freeze in freezer bags for best quality and odor protection. Package -- flat -- in freezer bags (see picture) to hasten freezing and make it easier to break off sections as needed. Express out the air and place bags on cookie sheets or metal pans until onions are frozen. Then, restack bags to take up less room.

Use in cooked products, such as soups and stews, ground meat mixtures, casseroles, etc. For most dishes, frozen onions may be used with little or no thawing.