Rita, it's best to wrap it today. Use aluminum foil, and then put it in a freezer bag. It'll keep for about 3 months. You can heat it up in the oven from frozen. Use some foil on the crust when you do, and heat it at 350 for about 15 minutes (check on it after 10). Rather than buy frozen pizza, I regularly freeze pizzaria pizza, but I do so with the plain pies. You might run into complications with the pepperoni. If that gets looking too crispy as you heat it up, remove it and put it back on the hot pie.
