Good2Heat 1.3L Storage Container - Red - Available at M&S

This clever Good2Heat container is ideal for storing leftovers or packing your lunch. The microwaveable design has a steam vent, so you can also use it to quickly and evenly reheat your food. It has a 1.3-litre capacity with a divider to encourage healthy portion sizes. Plus, it can be popped in the dishwasher for easy cleaning.