Tomatoes: Fruit or Vegetable?

So, I'm watching "Top Chef" and the chefs' challenge is to create a healthy school lunch.  In defending their menu, a chef stated that his team added tomatoes to the sandwich for more vegetables.  A judge responded that they added a fruit, not a vegetable.  So, I was curious what mypyramid would say.  Here's the scoop...

"Hey, USDA, tomatoes are fruits not vegetables! Why does MyPyramid include them in the Vegetable Group?

Oh yes, tomatoes are fruits – botanically speaking. But so are eggplants, cucumbers, green peppers, and several others which you'd hardly expect. The botanical definition of a fruit has to do with its seeds. In MyPyramid, as was done in the Food Guide Pyramid, USDA groups foods according to how they are used in meals rather than their botanical definitions. Tomatoes are commonly eaten as vegetables as parts of salads, sandwiches, sauces, and so are in the Vegetable Group. For more on the tomato, click here."

via MyPyramid.gov - United States Department of Agriculture - Tips & Resources.