Make this chicken salad the night before to let the flavours melt - in the morning, all you have to do is assemble. This is sure to be one of your kids' (and your) top 5 lunch favourites.
1) Stir chicken, the 'something crunchy', 'something oniony' and mayonnaise or yoghurt together until evenly coated. Season with salt and pepper, to taste. (This can be made the night before, and refrigerated.)
2) Evenly fill the sub rolls with the salad mix. Wrap in parchment or greaseproof paper. Pack in a lunch box with an ice pack and send off to school.
Cook's Note: Roasted turkey is great in these as well. Or, for adventurous eaters, make it curried: Stir 2 tsp curry powder, 20g chopped fresh coriander and 25g sultanas into the mix.