Is it permissible to work in a factory that produces pasta containing meats slaughtered both by Islamic and non-Islamic methods in a nominally Christian country like Australia, and is the income from this work lawful?

Slaughtered animals from thehl People of the Book are permissible, and it is allowed to eat and work with them, even if the person from the People of the Book is not fully committed to their religion, as long as the slaughtering was done in the prescribed manner by cutting the two jugular veins and the windpipe, and it was not offered to other than Allah. However, if the slaughterer is not from the People of the Book, or if the animal was not slaughtered according to Islamic law (such as stunning or strangulation), then it is carrion, and it is forbidden to eat it or use it, and it is forbidden to be hired for such an act. It is also forbidden for a Muslim to feed carrion to the People of the Book because it is forbidden in our law and their law. If a contract is made for a forbidden act, such as carrying carrion or alcohol for eating and drinking, the wage is not returned to the hirer; rather, it is spent on charitable causes or given as alms to the poor, or the worker may take it if they are poor.