Get your pumpkins ready. Cut off the lid and scoop out the insides. Turn the pumpkin on its side and cut a large oval mouth out of the flesh. Draw on two squinting eyes as per the video. Place on a serving board with the lid. Repeat with additional pumpkins as required.
To your hot bechamel sauce, add all of the other ingredients and stir gently but thoroughly. Your mac n cheese is ready.
To serve, spoon as much mac as possible into the 'head' of the puking pumpkin. Enjoy watching the pumpkin be sick!!