1. Prepare the cauliflower rice by chopping the cauliflower into small florets. Then, using a food processor, pulse the florets until they resemble rice grains.

2. In a large skillet, melt the butter over medium heat. Add the finely chopped onion and cook until translucent.

3. Add the leeks, carrots, and cauliflower rice to the skillet. Cook for about 5 minutes until the vegetables are tender.

4. In a separate bowl, whisk together the eggs and season with salt and pepper. Pour the eggs into the skillet with the vegetables.

5. Stir everything together and cook until the eggs are scrambled and cooked through.

6. Remove from heat and stir in the cheddar cheese until melted and well combined.

7. Serve hot as a main dish or as a side with your favorite protein.