Timing the Vegetables

The Journal of Preventive Medicine (via TreeHugger) says that in elementary school, Kids will eat more veggies if you let them play first : TreeHugger

Moving recess to before lunch increased consumption of fruits and vegetables by "0.16 servings per child", which might sound small, but it represents a 54% increase, which is huge. Pre-lunch recess also increased the number of children eating at least one serving of fruits or vegetables by 10% points.
Another beneficial effect of this simple change was the dramatic reduction in wasted food, by about 40%.

It's the sort of thing that I would class as "worth a try", both for schools and households. Wouldn't you?