C.M.
None of that is really filling.
Also, kids at that age do eat a lot. Mine (2 and 4) do and sometimes I get so tired of spending so much time in the kitchen preparing meals and snacks that I have a designated shelf in the pantry and fridge of snacks so they can help them selves.
In the pantry-raisins, granola, nuts, dried fruit, crackers
In fridge-washed grapes, washed strawberries with tops cut off, California cuties, Laughing Cow and Babybel cheese, string cheese, cut up cucumbers, grape tomatoes.
That way they can snack all they want/need to and it's healthy and I don't spend all my time fixing stuff!