These freezer sandwich ideas for lunch are sure to help make packing lunches less stressful for you and your kids! They're a great kids' lunch meal prep hack, too. Freezer sandwiches are even good for when you need an on-the-go lunch for your kids (or yourself?!) Tip: we like to put peanut butter on both sides of the bread; partly because it helps keep the bread nice and soft, and also, because…well…it's peanut butter. What are your favorite sandwich ideas for lunch for you OR your kids?