Your lunch box isn't too small — you're packing it wrong.

Your lunch box probably isn’t too small; you’re just filling it with bulky stuff that wastes space.

The biggest mistake is packing for volume instead of density. A giant salad looks impressive but collapses into nothing. Swap watery filler for calorie-dense foods — rice, beans, chicken, eggs, nuts, cheese. Same box, double the food.

Next, look at your box. If it has dividers, those walls are stealing real estate. One big open container is better: fill the gaps. Tuck cherry tomatoes, a boiled egg, or cheese cubes into the empty corners around your main dish. You’d be surprised how much a few tucked items add up.

Then think vertically. Most people lay everything flat and leave air above. Stack instead — dense carbs on the bottom, protein on top, sandwich pressed down flat on the last layer. If your box has a recessed or domed lid, that’s bonus room; use it.

Oh, and cut your food. A burrito cut in half fits corners. An apple sliced into wedges packs flat. Whole foods keep their shape, and shape works against you when it doesn’t match the container.

Density beats volume every time.