Chop cauliflower into small chunks and soak in plain or salted, optional water.
Using a large cooking pot, saute onions in water and lemon juice.
Add basil & pepper and saute until the onions are soft. Now add the cauliflower and steam until cauliflower begins to turn soft, don't over cook.
In a casserole dish place the lightly cooked cauliflower and mix in the cooked millet and rice. Once mixed, then add in the cheese and mix again.
Toss into the oven and cook at 375F for 30 to 45 minutes.