I've never tried mayo on rice. I might give it a try now. Not a big mayo fan, so I'm not expecting it to become a favorite. My taste buds are somewhat lazy. If I want them to sing and dance, I have to hit them over the head with something sharp, like mustard.
I tried that the last time I made a quesadilla. It was good!Bonus: ik this sounds weird but hear me out, use mayo instead of butter on the outside of your grilled cheese. It'll give it a richer flavor with subtle vinegar notes