cooking vs pan roast

cooking is a noun but pan roast is not a noun.

Word	Noun	Adjective	Verb	Adverb
cooking	Yes	No	No	No
pan roast	No	No	Yes	No

cooking (noun)	pan roast (noun)
the act of preparing something (as food) by the application of heat

cooking (verb)	pan roast (verb)
	roast in a pan