Wrap the box with commercial plastic wrap that can be purchased from a warehouse like Sam's or Costco. You will want to wrap these boxes as tightly as possible.
Begin by wrapping the pizza box from the bottom. Pull out a large extended length of wrap without cutting it.
Then set the pizza box on top and start wrapping under and over until your box is completely secured in plastic wrap.
When this is done correctly, you can literally turn the box upside down and the appetizers will not fall out of the box.
As a caterer, I wrapped everything in this under, over fashion. Not only did it protect the food in the storage process, it also protected the food from accidents during transportation.
Put the wrapped box in the freezer and store until your wedding weekend. It is always a smart idea to monitor your freezer to be certain it is working properly.
If you start to run short on freezer space, get creative about places you can store food for your wedding.
What about family, friends, or perhaps your church has a freezer that you can use for wedding reception storage.
To transport the wrapped boxes, simply walk in refrigerator stack them in clear large plastic bags. Tie the bags. This will protect the boxes of appetizers from shifting around during transportation.
By all means assign this job of appetizer transport to a family member or friend.
I would suggest asking a friend or family member, or hiring a staffer to be your appetizer co-ordinator for the wedding day.
If you have too many leftover appetizers after the wedding reception you really should not refreeze them.
If you can not use them up during the weekend ...why not donate them to a food bank and bless others less fortunate than yourself?
Again, let a friend of family member co-ordinate the donation of excess wedding food for you.
Please keep in mind that you are dealing with perishable food and you want to be careful that all food is being handled in a safe manner and stays within safe temperature zones.
Therefore, it is highly recommended that you enlist the assistance of a conscientous family member, friend, or hired assistant to help you.
Don't let this food safety aspect scare you off from self-catering or semi-catering your own wedding reception. As long as you take provisions of safety, you will not encounter any problems.