Cook pasta and water for 1:30-2 minutes in a 10 ounce mug stopping a few times towards the end to stir to prevent water from boiling over.
Add milk, pumpkin puree and salt and and continue cooking for 1-2 minutes stopping to stir occasionally. Cover and allow to rest for 3-5 minutes. Check pasta to make sure it’s cooked through.
Stir in cheese, cover for 1 minutes until melted and serve.
* The macaroni and cheese will continue to thicken the longer it sits