Cut the head of cauliflower into quarters.
Place the cauliflower into a food processor using the grater attachment. Alternately, you may grate the cauliflower using a box grater.
Place riced cauliflower into a bowl with a paper towel. Gently squeeze the excess moisture out of the rice.
Heat the olive oil in a large skillet over medium-high heat.
Add the riced cauliflower into the skillet and cover, stirring occasionally. Cook until tender, about 5 minutes.
Mix in the soy sauce and cook for 1 more minute.
Season with salt and pepper to taste, keeping in mind that the soy sauce adds a good amount of saltiness.
Serve in place of traditional rice.