Stackable bento boxes are the move

The best lunch box for a whole meal that still fits a small fridge shelf is a stackable bento box, like a three-tier tiffin or a Monbento-style container.

The trick is going vertical instead of horizontal. A single big rectangular container with a main dish, side, and dessert eats up half the shelf. A stackable one takes up about the same footprint as a sandwich box, and you just pile the layers. Most come with separate leak-proof compartments, so your salad dressing isn’t swimming into your brownie.

You don’t need a giant insulated bag either. The box itself keeps things organized enough, and if you need to keep something cold, slip a thin ice pack into whatever bag you’re already carrying. Just make sure the layers are microwave-safe if you’re reheating at work — most tiffins are, but check before you buy.

If you’re eating something that needs to stay hot, a wide-mouth thermos bowl works too, but that’s a different tool for a different job. For fitting a full meal in a cramped fridge, stackable wins every time.

Your fridge shelf will thank you.