To make this dish vegan, swap the egg for tofu. You can use soft tofu to mimic the scrambled egg, or firm tofu, cut into cubes. Whichever you like best.
To make it gluten-free, be sure to use a gluten-free tamari in place of the soy sauce.
The spiralizer I personally use is
THIS ONE. I'm not sponsored by this brand, I just like 'em.