Noodle substitutes that soak up sauce? in Cooking Posted August 18 2 hours ago, Affinity said: There are cassava noodles but I haven't tried them yet and I am not sure if they would be compliant because they might fall under the same guidelines as breads and baked goods substitutes. I like to use hearts of palm pasta but it doesn't soak things up. If you take a vegetable and cut it into a noodlecshape, it's fine. If you have to dry it to create a flour and then use that to make noodles, that's re-creating pasta and isn't really compatible with Whole30 rules.