Preheat oven to 180°C/350°F/Gas 4.

In a large bowl (with a spout if possible) mix together the pumpkin pie mix and evaporated mix. Whisk in the the two eggs.

Place the pie crusts on a baking sheet and pour the mixture between them.

Bake for 45 minutes or until a toothpick inserted into the center of the pies come out almost clean.

Remove the pies from the oven and transfer them to a wire rack to cool.

Serve topped with whipped cream if desired.