I bought these individual 99 cent sausage, egg, and cheese croissants for Christmas breakast. They come frozen, so I take them out of the freezer the night before, and put them in the fridge. I then microwave them for 30 seconds on high. They are completely heated all the way through.
I have tried their directions when frozen, and the outside always is really hot, and the middle is slightly frozen. Not the kind of breakfast you want to eat.
So an easy start to the day, so that I can start preparing the food for later. Again, have a wonderful Christmas/holiday.