Moussaka - freeze first or cook first.

Cook first, then freeze.
My daughter froze an uncooked Lasagne and when she defrosted and cooked it, the pasta sheets had become slimy and they couldn't eat it.

I freeze first otherwise could be over cooked when you reheat.

Cook first , cool then freeze . That's how I would do it.

I would cook first too, if the oven is on anyway, use it.

Yes I would also cook first then freeze when cold, enjoy!

Yes you are probably right GG at least then I can just heat it up in the microwave.

I would cook before freezing.