I hadn't intended to join this thread since I had nothing exotic to nominate, but having read Spaw's post I had to come in.
I do that almost every night. The daughter's vegetarian and the son won't eat anything that's even vaguely spicey (ie - anything that's not completely bland), so I usually have to prepare three different dishes.
Burritoes for eg - Jill & I have the full catastrophe, but I fish Tom's chicken out before the flavouring goes in, and he has just cheese & lettuce on his. Mary gets a meat substitute mixed up, fried & flavoured seperately, and she has everything except cheese on hers.
I chose to describe our burrito procedure because that's probably the simplest meal we do around here.
(You should see it when we have bangers & mash!)