Your best bet is naked air-popped popcorn, made with a hot air popper (or using my microwave hack, below!). Popped without any oil, this diet-friendly snack weighs in at just 30 calories per cup.
Letâs start with granola. Granola is so simple to make, and even easier to freeze. It doubles as a breakfast or a snack. It can be served with yogurt or milk, or if youâre really in a rush or only have one hand free, it can be eaten by the handful on-the-go. I tested two things when looking into how to freeze granola:
1 Pumped milk may be added to frozen milk provided it is first chilled and the quantity is less than what is frozen. 2  Store your milk in Medela's breastmilk collection bottles or in disposable bags specifically designed for breastmilk, such as Pump & Saveâ¢ Bags, by Medela.  Freeze milk in two (2) to five (5) oz portions.