P.B.
I would not worry. My now almost 4 year old son has been the same way. They eat well at daycare because they know that there are no choices. That is all there is to eat. At home - they know that just behind the pantry door - there are many things that they would rather eat. It is normal as a mom to worry - but don't sweat the small stuff. (BTW - I am the mother of 7 and have learned that lesson well!)