A souffle, is like a cake, but airier. While mousse, is a chilled pudding-like dessert. It can also be made into a cake, called mousse cake, where it is mixed between a layer (Or more) of biscuits,...
an omlette is an egg based breakfast/dinner/tea meal yet a souffle is a creamy declicous pudding/desert
A souffle is a desert, it tastes sweet and kind of runny in the middle. An omelet is for...