If you haven't heard of a vegetable spiralizer, then you've almost certainly probably seen food prepared with one somewhere...
...whether in a salad, or in cooked form: Courgettes (aka zucchini) are a common one - so common in spiralized cooked form they even have their own name now, known as 'courgetti' or 'zoodles', as a grain free, low carb, low calorie alternative to traditional spaghetti or noodles. And if you've ever been for sushi, you've quite possibly noticed the pretty spirals of Japanese white radish served alongside slices of sashimi.
Many vegetables (and also some fruits) are excellent candidates for being spiralized to add to salads, stir fries, fritattas, soups etc., or to eat in place of pasta and noodles. With thicker cut strands or plain spiral cut, they can also be tossed in a little oil and roasted, to add to or make delicious warm salads, or as side dishes, snacks or garnishes. Spiralizing vegetables can also make them more appealing to those who aren't keen on conventionally served vegetables or salads - including children!