Answer:
Assuming that roughly an equal number of schnitzels were fried in each pan, that means that 2/3 of them are Kosher and 1/3 are not. While generally we would say that with similar, dry objects the majority would determine the nature of all of them, here it is not applicable. Assuming each individual piece is a full serving, they would be considered a Chaticha Re'uya l'Hiskabed, a portion appropriate to serve a respected guest, and the non-Kosher ones are not Batel.
Therefore, any small pieces could be eaten, but any full-size ones are forbidden.
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