I buy ground meat in bulk. Since I don`t need all of it, I cut it into portions and freeze it in freezer bags. After it is in the portion size, I place a plate on it and mash it as flat as I can in the freezer bag. This makes it faster to defrost and cook. It also stacks better in the freezer. I simply place the flattened bags on cookie sheets until frozen. This has saved me time and stress when I am in a hurry to make dinner.