beef patty vs chopped steak

beef patty and chopped steak both are nouns.

Word	Noun	Adjective	Verb	Adverb
beef patty	Yes	No	No	No
chopped steak	Yes	No	No	No

As nouns, beef patty and chopped steak are synonyms defined as:

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

beef patty (noun)	chopped steak (noun)
a patty of ground cooked beef	a patty of ground cooked beef