I grow bitter melon, but no volunteers this year. The only way I eat it is
stir fried with cherry tomatoes, peppers and add scrambled egg. Kinda
like an omelette. The bitterness does take getting use too.
If you slice them into very thin strips, wash/rinse a couple time with salt then stir fry with your favorite mixtures of meat. That will rid of some of the bitterness before you cook the squad. Steam stuffed bitter squad (like inthegarden has mentioned above) is the most effective way to lessen the bitter taste, I do think. :))
Zinniared is correct in milk climate, where the soild doesn't freeze. We will occassionally get volunterees the following year.