InstaMash

InstaMash is a food item found in Fallout 3, Fallout: New Vegas, Fallout 4 and Fallout 76.

InstaMash
InstaMash is freeze-dried powdered mashed potatoes, packaged in a white cardboard box with blue highlights. A tag-line toward the bottom of the box states that InstaMash comes "With Real Dig-In Flavor!"

Irradiated InstaMash
Irradiated InstaMash is exactly the same as regular InstaMash, but has been exposed to the high levels of radiation found at Camp Searchlight.

Preserved InstaMash
Preserved InstaMash is a pre-War version of regular InstaMash and therefore delivers no radiation damage.