Add oil. Reduce heat to low, then add onions, and stir occasionally for 30 seconds before adding garlic, turmeric, and cumin. Stir well, and give it another 30 seconds or so, until fragrant.
Next, stir in the carrots and celery. Cover, and cook for 5 minutes.
Remove the cover and stir in the cauliflower rice. Do not recover. Stir occasionally for about 5 minutes, until cauliflower is yellow from the turmeric and soft. Turn off the heat. Stir in parsley and salt to taste.
This saves well in an air-tight glass container and can be reheated throughout the week.