Tough one, is there any opportunity for you to ask about insulated boxes to help keep the foods warm while on the way to you?
This is an idea of some of the equipment that's available -
insulated food carriers and an item
from Ebay, they aren't cheap sadly but will help serve food that you and the children prefer warm.
Fruit smoothie and scone or flapjack could be a good alternative for your rice dilema.
These are a few links that may help gather some hot & cold meal ideas:
Rice recipes -
Potato recipes -
Bread recipes -
Pasta recipes
Allotment recipes -
Veg box recipes -
Dietary specials -
Eggless cooking
If you search for school menus there are lots of ideas out there that can hopefully help more xx
If anyone knows of any recycling initiatives that offer value and insulated products for transporting food please post ..