smorgasbord vs mixed bag

smorgasbord and mixed bag both are nouns.

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

As nouns, smorgasbord and mixed bag are synonyms defined as:

smorgasbord and mixed bag: a collection containing a variety of sorts of things

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

smorgasbord (noun)	mixed bag (noun)
an assortment of foods starting with herring or smoked eel or salmon etc with bread and butter; then cheeses and eggs and pickled vegetables and aspics; finally hot foods; served as a buffet meal	a collection containing a variety of sorts of things
a collection containing a variety of sorts of things