Wash the cauliflower, remove the outer leaves and the stem and cut it into small pieces. 

Place the cauliflower florets in the food processor and blend until you get a consistency or texture similar to rice. If you don't have a food processor, cut the cauliflower into 4 pieces and use a box grater instead (the medium-sized holes or the side used to grate cheese). You could also use a regular blender, but don't over-blend or you'll get a cauliflower paste. Cauliflower rice can be eaten raw or used to make salads or all kinds of raw vegan recipes. However, I prefer to eat it cooked as it's easier to digest and much more flavorful.

You could cook the fried rice just by itself in a skillet, but I prefer to add some ingredients to make it taste amazing, like oil, salt and pepper.

Just add some oil to the skillet and when it's hot, add the cauliflower rice, salt, and pepper, stir and cook over medium-high heat for about 5-10 minutes or until it's cooked, stirring occasionally. I usually cook it until it starts to golden brown. Water and vegetable stock can be used instead of water.