hasty pudding vs cornmeal mush

hasty pudding and cornmeal mush both are nouns.

Word	Noun	Adjective	Verb	Adverb
hasty pudding	Yes	No	No	No
cornmeal mush	Yes	No	No	No

As nouns, cornmeal mush is a hypernym of hasty pudding; that is, cornmeal mush is a word with a broader meaning than hasty pudding:

hasty pudding: cornmeal mush served with sweetening (maple syrup or brown sugar)
cornmeal mush: cornmeal boiled in water

Other hypernyms of hasty pudding include mush.

hasty pudding (noun)	cornmeal mush (noun)
cornmeal mush served with sweetening (maple syrup or brown sugar)	cornmeal boiled in water
sweetened porridge made of tapioca or flour or oatmeal cooked quickly in milk or water