<<Disclaimer: Verify this information before applying it to your situation.>>
You can find gefilte fish in large supermarkets year round, and especially
near Passover. However, all that I've ever seen contain matzo in some
form, so forget that for a g-f diet. It's easy to make your own with the
advent of food processing. Just use g-f flour instead of matzo meal.
Ellen Switkes
Oakland, Ca