Pillsbury mini pizzas?

I'm a little worried. I was about to cook a few of these in the oven, and noticed part of one of the pizzas was very icy, like it had been thawed and refroze. So I cooked them and ate most of it all, except avoided the part that I remembered was icy. I remember the day I bought them, I spent about an hour or so eating lunch and they were in the trunk of the car. It wasn't swealtering heat out that day, but drizzly. Not cold, not hot. I guess I forgot to check them before I stuck em in the freezer. They are the 3 cheese kind, no meat on them. I already ate about 8 of them out of that pack over the last few days and seemed fine. Are they still ok to eat? I guess it doesn't really matter now that I already ate so many out of that box of 12, but I can throw the rest out if I have to. Out of all of them, only 1 of them had that ice melt on it, and only partially. Thanks in advance, I'm asking now incase this happens in the future. I personally can't see why it would be so bad since they don't have meat on them, only cheese. And probably fake, full of preservatives cheese at that. LOL.