[just another ref]

Originally Posted by Drizzle

Publication 463 (2008), Travel, Entertainment, Gift, and Car Expenses

From what I can understand, unless you're traveling so far where you need a place to sleep, you cannot deduct meals. I'm not a tax professional, though.

You can deduct the cost of meals in either of the following situations.

*

It is necessary for you to stop for substantial sleep or rest to properly perform your duties while traveling away from home on business.
*

The meal is business-related entertainment.





Which at the high school level is, basically, never.