Fiorella eats, but she isn't really into food. She'll eat what tastes good to her--in fact, she'll overeat what tastes good to her--but her palate is way too discriminating. She doesn't eat sour things, like dark green vegetables, or red things, like ketchup, and she doesn't eat mixtures either.
And aside from scrambled eggs and boiled potatoes, she has no interested in cooking. In fact, it confounds her why people put so much time and effort into preparing something that has no chance of lasting, that will actually be eaten into oblivion.
She wants her creations to have at least a chance of surviving.