Expired Frys Shnitzels - 4 cases from chain store

During the last TWO weeks of August 2017, I purchased four cases (each case contains 20 individual units) of Fry's Vegetarian Schnitzels for a party on 3 September 2017. During the party it was noted that these Vegetarian items were "off". I am a (Proud) vegetarian - BUT THIS EPISODE WAS TERRIBLE. PLEASE RESPOND IN TERMS OF THE WAY FORWARD, ASAP.

REALLY DISGUSTED, BY THIS EXPERIENCE.