Originally Posted by sparkys_mom

Warm it before so it is flexible.

BTW, I do something very similar to this but I use caramelized onions that I make in the crockpot. I make a big batch, freeze them flat, and then break off as much as I need for whatever I'm making. I also will slice leftover steak and freeze it the same way - just pulling out what I need for a single sandwich (or tortilla). You can google for the onions in a crockpot recipe.