I am amazed that one of my sons does not like condiments. To me, there are times when the condiment is the best part of the meal and the food is simply a condiment-delivery utensil.
At any rate, I woke up in the middle of the night recently and a word I had never heard formed in my head (I am weird like that). It seemed to be the perfect word to describe my son's affliction. The next day I googled the word to see if it had ever been used* and, if so, how it is officially defined...
There were plenty of results in the link headlines; however, when clicked upon none of them actually included definitions for the word with the prefix. Most returned a definition for the noun condiment and some added the adjective condimental, but alas, NO noncondimental. The word noncommital has its own dictionary entry, so why not noncondimental.
Add a prefix and create a word.
(of a person or a person's behavior) Refusing to use any items intended to enhance the flavor of food.
*Although I never found an official definition, it should be noted that I did find the word used in an online Catholic Encyclopedia.