They also eat like birds through. While they want to snack all day they do not want to sit down and get filled on a big meal. If I make them a sandwich for lunch they eat just half of it; if I make them half a sandwich they eat half of the half. And then half an hour later they are hungry again.
I think I solved the problem by making them little snack trays for lunch. In the effort to go more raw, healthy, and prevent food waste - these trays work. This tray is my 2 year olds (the rest of ours have larger quantities):
The kids enjoy having a range of choices and nibble off their plates. Whatever they don't finish I stick in the fridge and they pull it out when they get hungry. Within a few hours the trays are empty and they are usually full and can wait until supper.
Grapes, cantaloupe, broccoli, carrots, dip and a pretzel stick fill them up. It's amazing how everyday I can fill the tray with something different to give them a variety. Some days I add nuts, different fruits and vegetables, a granola bar, etc. It may not look like a lot but even I get full on these trays for lunch. Kids also like little muffin tins with a little bit of this and a little bit of that in each section. It is fun, healthy, and filling!