Darls, I would chop the pumpkin into 4cm pieces, place in the varoma dish (and use the tray as well if you have plenty to cook). Pour about 800mls boiling water in the TM bowl, put the varoma on top and steam on Varoma temperature speed 2 or 3 for about 15 minutes or so. Just check to see if the pieces are cooked with a skewer. Mash with butter and freeze in 1 cup portions. Easy to take out, defrost and reheat in the microwave for those in the family who like it. Leave the pieces chunky if you prefer but lay them flat until they are frozen so that you can just pull out how many pieces you want. You could put pieces in the steaming basket too if you really have a lot you want to cook at once. I use my varoma all the time for steaming vegies.