Lunch ladies add oily dressing (typically ranch or Italian), processed cheese, and token lettuce shreds to the awful tortilla to make wraps.
The thick, doughy crust employed in most school cafeterias adds carbs, sodium, and structure for a haphazard cheese application, tripling the calories.
If they're going to bread, deep-fry, and mayo an innocent chicken breast, your youngster may as well get a hamburger.
The boiling oil where French fries absorb much of their saturated fat is unlikely to save them. They usually have as many calories as the main course.