Put all the ingredients in a high-speed blender and blend until well combined and smooth. Enjoy immediately.
NOTES: If it’s available, you can also use freshly cooked pumpkin, but make sure it is cooled and note that you may need a little more milk, as fresh pumpkin can be starchier.
In place of mango, you can substitute any frozen fruit, but I’ve found mango works best, as it does not take away from the pumpkin flavor. To mix it up, cherries are yummy, and bananas are delicious but will be the dominant flavor.
Please see the recommended brands of protein powders under Pantry Nice-to-Haves, as there are many gastrointestinal side effects associated with brands containing whey (dairy), sugar alcohols, additives, fillers, and preservatives.