Then enter a cooking competition if it's so easy. Clearly you can easily get on Chopped, Master Chef, or Hell's Kitchen and win it all, right?
And what you are talking about in regards to portion sizes are either items from a Tasting Menu of at least six courses or a Tapas menu.
But since Michelin has been around since 1900 I will take their word over that of someone who can't boil water to save his life.