Invest in a quality lunchbox that holds plenty of food in 2 easy to clean nested layers, with a lidded stainless steel snack pod included. The stainless steel bento style lunchbox features rolled edges for strength and safety and clips that can be adjusted with pliers to tighten them or to make them easier for little hands to manage.
Not suitable for the dishwasher or the microwave, but with no tricky internal partitions or sharp corners, they are easy to handwash and won't retain stains or smells as plastic or other materials could.
Not leakproof (you'll want a flask for really wet foods), but great for sandwiches, sushi, substantial salads - pasta, potato, rice, lentil, roast vegetable etc. crackers and dip or fruit and yoghurt etc.
The lid fits securely on the top layer, so it could be used as a single layer container.
Holds 5 cups of food.