The phrase 'Omelette du fromage' comes from Steve Martin's stage act as represented on the 1977 comedy album "Let's Get Small". The correct grammar should actually be 'omelette au fromage'.
She-Thing is a portmanteau of the Thing from "The Fantastic Four" comic and the She-Hulk.
Although these episodes aired in 1997, it was made in 1996 according to the credits.
Production code is 108.