Can you refreeze a cooked apple pie which has been made with previously frozen stewed apple?

No, according to the USDA you cannot refreeze cooked apple pie made from thawed previously frozen stewed apples.

This is because the apples have been cooked, cooled and then refrozen. This can cause the apples to become mushy and the pie to become soggy. Additionally, refreezing the pie can also cause the growth of bacteria, which can make you sick.