baked goods vs pastry

baked goods and pastry both are nouns.

Word	Noun	Adjective	Verb	Adverb
baked goods	Yes	No	No	No
pastry	Yes	No	No	No

As nouns, pastry is a hyponym of baked goods; that is, pastry is a word with a more specific, narrower meaning than baked goods:

baked goods: foods (like breads and cakes and pastries) that are cooked in an oven
pastry: any of various baked foods made of dough or batter

Other hyponyms of baked goods include cake, bread, breadstuff, staff of life.

baked goods (noun)	pastry (noun)
foods (like breads and cakes and pastries) that are cooked in an oven	any of various baked foods made of dough or batter
	a dough of flour and water and shortening