Heat the oil in a large skillet over medium heat.
Sauté the onion and garlic for 2-3 minutes until they start to soften.
Add in the spices and cook 30 seconds until fragrant.
Add in the riced cauliflower and cook 5-7 minutes until soft and starting to crisp around the edges.
Pour in the tomatoes and stir to combine.
Cook another 3-5 minutes until the mixture is dry and resembles fluffy rice.
Season with salt to taste and serve, or let it cool down and refrigerate fir up to 4 days.