Develop a taste for those 1.00 a pack Yakisoba dry noodle boxes with the dried veggies in the box. I think those things can last forever and even if they are designed to be microwaveable they can be cooked in a pot also. It is sort of like undercover emergency supplies, get a case of them tell her you are going to have them at work. They need seasoning besides the wretched stuff that come with them.
$0.70 or so each at Wallyworld. Agree with everything else.
If this and other nutrition-deficient (but calorie-dense) foods are to be anyone’s mainstay, make sure to have a plentiful supply of multivitamins.