It was an egg. Just one whole egg. Cold, and served on a plastic plate. I'm not sure it was even cooked to be honest.
So AIBU to have cried and said 'don't want it!' (Which incidentally, is exactly what DD said when presented with her perfectly edible meal earlier).
DD seemed to think I was unreasonable, judging by the way she took my plate away, dumped it on the side in the kitchen and threw her hands up in the air.