Preheat oven to 400 F. Working in batches (in a food processor), cover and pulse cauliflower four to six times or until crumbly and resembles rice.
Transfer the cauliflower "rice" to a 2 to 2-1/2 casserole dish. Sprinkle with basil, pepper and salt; toss to coat. Bakes the mixture for 15 minutes.
Stir in spinach, chicken, and Alfredo sauce. Sprinkle with cheese.
Combine bread crumbs and oil; sprinkle over cauliflower mixture.
Bake 20-25 minutes or until top is browned. Serve!