Whole Wheat Rotini Pasta Grocery Store RattyRat's Review: Rats love to chew on uncooked pasta noodles, and it's hilarious to give a bunch of rats noodles and hear them all crunching away in unison. Try to get whole wheat pasta as it's healthier, or spinach works too. Our rats like the rotini shaped noodle, but any shape will do. Be careful though. Use in moderation. As we all know, pasta is fattening.