What we have done a few times is to go to Subway the night before the flight and order a 12" sub but ask them to put the veggies in a plastic zip lock as well as the honey-mustard sauce. They wrap it up in a couple of plastic bags. We stick it in the frig and in the AM when we leave for the airport we toss it into the carry on bag along with an empty water bottle and were good to go.
Part-Owner of Texas
Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read. Groucho Marx
In dire need of: faster horses, younger woman, older whiskey, more money.