1 Bring a pot of water to boiling on the stove and add a little salt. 2  Throw in the noodles to cook for just two to three minutes. 3  They cook very quickly, and if you wait too long they will get mushy. 4  Strain the noodles. It takes about one minute to fully spiralize an average-sized squash. 2  Then, you can put the veggies in the fridge for later or continue the cooking process. 3  Bring a pot of water to boiling on the stove and add a little salt. 4  Throw in the noodles to cook for just two to three minutes.