I inventoried our inside fridge and freezer and pantry. I also took an inventory of our outside freezer, our outside refrigerator, and the non-perishables that we store outside. Here is the printable that I used; I found it at Mom on a Mission.
The first page says Freezer Inventory, the second does not have a header. So, I used the first page for both freezers/fridges and the second page for pantry items. I found that to be the easiest and most organized way to see what we have...