See OC 168:17 says that “pashtida” (meat pie) is hamotzi. It is not obvious though that SA is talking even where you did not eat it as a kevias seduah.
MB 94 explains that it is even if you are eating it as snack. Beur Halacha ad locum distinguishes the case of the taz to argue that everyone agrees with this halacha, and says the taz is talking about hors d’oeuvres. I cite to the beur halacha because that’s where he explains it good.