Certainly you don't want to be wolfing down bagels or sandwiches. It's really critical after the game they eat within two hours. The next day they should get some proteins. That's when you can have roast beef and chicken. The quicker the better.
Proteins are also a concern for a few vegetarians on the Olympic squad.
We've encouraged them to take a multi-vitamin with iron. Generally, though, you want to generate the nutrition from the food you eat. One thing that happens with the girls is they are so conscious of fat content they don't get enough. And they do. We're always encouraging them to carry snacks.