beef Wellington vs filet de boeuf en croute

beef Wellington and filet de boeuf en croute both are nouns.

Word	Noun	Adjective	Verb	Adverb
beef Wellington	Yes	No	No	No
filet de boeuf en croute	Yes	No	No	No

As nouns, beef Wellington and filet de boeuf en croute are synonyms defined as:

beef Wellington and filet de boeuf en croute: rare-roasted beef tenderloin coated with mushroom paste in puff pastry

beef Wellington (noun)	filet de boeuf en croute (noun)
rare-roasted beef tenderloin coated with mushroom paste in puff pastry	rare-roasted beef tenderloin coated with mushroom paste in puff pastry