Your family probably has plenty of food on the table, but many others aren't so lucky. Enlist the help of your kids the next time you schedule a trip to the local soup kitchen, where they can dish out hot meals to homeless people and others struggling to make basic ends meet.
It might be more appropriate for small children to assist by shopping for food to donate to the local food pantry. Allow your child to have some input and discuss menu selections, all while explaining the reasons you're making the effort for people you don't know. Then, when you drop off the goods, ask an employee to briefly describe how families in need will benefit from your generous donation.