hamburger steak vs chop steak

hamburger steak and chop steak both are nouns.

Word	Noun	Adjective	Verb	Adverb
hamburger steak	Yes	No	No	No
chop steak	Yes	No	No	No

As nouns, hamburger steak and chop steak are synonyms defined as:

Other synonyms of hamburger steak include beef patty, chopped steak, chopsteak.

hamburger steak (noun)	chop steak (noun)
a patty of ground cooked beef	a patty of ground cooked beef