But whenever I make a picnic neither one of my children seems to eat much (with one barely touching it.)
This is also likely to be a problem at preschool when she starts in September. She just takes the filling out of sandwiches 
and that’s it usually, bar a few crisps. Has anyone got any suggestions as to what they might actually eat? DD is very fussy. Ds not so much but doesn’t tend to stay in one place for long to actually eat!