hodgepodge vs mixed bag

hodgepodge and mixed bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
hodgepodge	Yes	No	No	No
mixed bag	Yes	No	No	No

As nouns, mixed bag is a hypernym of hodgepodge; that is, mixed bag is a word with a broader meaning than hodgepodge:

Other hypernyms of hodgepodge include assortment, miscellanea, miscellany, mixture, motley, potpourri, salmagundi, smorgasbord, variety.

hodgepodge (noun)	mixed bag (noun)
a theory or argument made up of miscellaneous or incongruous ideas	a collection containing a variety of sorts of things
a motley assortment of things