uncooked and cooked rice is great. I add uncooked to my dry mix but cooked rice is one of my staples for wet meals (mixed with egg) . Dried pasta, noodles extra are fine too, just bear in mind the more processed they are the easier they are for rats to digest and so the easier they put on weight. Wholegrains are harder to digest, grains that are minimally processed and still in there husk are even harder to digest which is better for young and adult rats.