Well, I know you're needing food recepies for rats, but I'm bored, so I'm posting anyways.

The hammies get Kaytee Forti-Diet, or something like that. They also love bread soaked in milk, honey sticks, and these treats called Krunch-A-Rounds (A peanut in the center, with sesame seed coating).
Floppsy eats LM Premium Rabbit Food, which is pellets. She loves them. She also eats tons of other things; baby/big carrots, celery, bananas, parsley, clovers, and plenty of others that slipped my mind.