If your pie is homemade, make sure it is cooled before getting started.
Decide if you want to use it whole or sliced when you defrost it. If you want slices, make sure to slice your pie now.
Flash freeze it by putting the pie or the slices in a single layer on a cookie sheet and placing it in the freezer for an hour or two. The meringue should be stiff to the touch.
Remove it from the freezer and tear off a sheet of plastic wrap large enough to completely cover the pie or each slice.
Place the plastic wrap flat on the counter and put your pie or slice in the center.
Secure the plastic wrap around the pie so that none of the pie is exposed.
optional: for extra protection, you can repeat with another layer of plastic wrap and/or aluminum foil.
Take your wrapped pie or slices and place them into a freezer bag or an airtight container.
Put the lid onto the top of your container. Or, if using a freezer bag, gently press all of the air out of it before zipping it closed.
Grab a pen or marker and use it to write the date on your package before setting it into the freezer.