Well, the recipe I have will not be of much use...

Hollow out the pumpkin, removing the seeds. Add cream ( or milk), sugar, apples, raisins, and spices (nutmeg, allspice, clove, cinnimon, etc) and place the top back on. Bake it until the body of the pumpkin is soft.

My additions are in ()... Not too detailed, but perhaps it gives someone the idea.