Ummm don't know if your kids like it but my 7 year old daughter loves sushi. I make my own and a little goes a long way as it is filling. Just make sure u use sushi rice which if you have a rice cooker cooks just like normal rice and for a cheap filling u can use tinned flavoured tuna(smoked or sweet chilli) with avocado or cream cheese.

Or as an alternative rice paper rolls which are little spring rolls without the deep frying. Tried these on my daughter this week and she inhaled them. Just google them....they are simple to make.

Otherwise jelly cups, mini quiches, savoury popcorn(heaps of flavours, once again do a google search). I just finished making some savoury cheese biscuits which is just shortcrust pastry with grated cheese rolled through then cut into shapes with a biccie cutter. Takes 10mins in the oven.

Anyway I hope that helps.