A variety of veggies can be spiralized and either used raw or cooked. The trick is to choose veggies that are less juicy and have a firmer center. Veggies such as tomatoes or greens definitely won't work to make veggie noodles. Sweet potatoes, winter squashes, carrots, zucchini, beets, yellow squash, cucumber, radishes and a variety of other root vegetables work great to spiralize. You can even use the spiralizer to make fruit noodles with apples and pears. The trick is to experiment and see what works and what doesn't! You might discover something new!