It’s bland as hell but I can’t get enough of it.
If it’s oats and sesame oil, I’d call that flavor “oaty” and I also really enjoy it. But shredded wheat lacks that flavor for me, so IDK.
But as a recommendation check out barley tea.
Possibly malt.
Cardboard
Spackle
“Farinaceous” is the term used in mycology for mushrooms that have a grain-like smell/taste.