This is why chefs should be festively plump. If they're skinny, they don't like food, and their tastes are not to be trusted. If they're obese, they like food too much, and their tastes are not to be trusted. However, a slightly fat guy likes food a lot, but doesn't consume anything and everything put in front of him.
Well her house is clean and she doesn't vomit on everything so I actually think it's okay that she is basically an overworked skeleton supporting a thick covering of butter and contempt for all reasonable measurements and taste.