Heat the olive oil in a large pan over medium-high heat.
First, start by preheating your oven to 400 degrees F and lining a rimmed baking sheet with parchment paper.
Lay out the "rice" evenly on the rimmed baking sheet, and place into the oven.
Roast the cauliflower for 20-25 minutes, tossing halfway through, until the cauliflower is tender and starting to brown around the edges of the pan.
Remove from oven and allow to cool.
If using the cauliflower rice to make cauliflower tortillas or cauliflower pizza crust, it is necessary to squeeze the liquid out of the rice. Once the cauliflower rice is cool enough to handle, place it into a thin clean dish towel or cheesecloth and squeeze out as much excess liquid as you can. This will be very helpful when it’s time to cook because they won’t be super liquidy. You can just discard the liquid once you’ve gotten as much out as you can.
Nutritional info provided is for cauliflower rice cooked on the stove. Cauliflower rice cooked in the oven will contain less calories and fat since that method does not use any oils.