Desert Survivalist

 is an achievement in Fallout: New Vegas which is awarded for successfully healing 10,000 points of damage using food.

The easiest way to get this is to go to Goodsprings Cemetery and go down the hill to where there are 15-20 Radscorpions that re-spawn around every 3 days, kill them and loot them to get their glands. Take the glands to Ruby Nash in Primm and she will turn them into casserole, eat the casserole (if doing the casserole method you need to have lost HP equal to or greater than the amount of health that will be gained from one) with a survival skill of 100 only require 112 casseroles (+3HP(30s))