I know this is out of season, but I've just discovered a great way of using the papayas that grow in my backyard. I'm posting it here before I forget it. Who knows; it could be useful to the MIT community in the future.
1 Ripe Papaya
250 ml Heavy Cream
1 pint Fresh Berries
Peel the papaya and puree it in the blender. Add milk until you've got something with the consistency of a thick smoothie, and add honey and cinnamon until you like the taste. Put the whole thing in the freezer until it's mostly frozen (I find this takes an hour and a half to two hours), then run it through the blender again and stick it back in the freezer.
Zest the lemon and squeeze out a tablespoon of its juice. Whip the cream together with the juice and the zest until it's good and whipped. Layer with berries and frozen papaya mixture in a clear glass. Serve immediately, or stick in the freezer for later use.
Delicious on a hot spring day (she says, as all her MIT friends don their sweaters and trot briskly through the autumn leaves).