Loaded Broccoli Casserole Defrost the broccoli florets (if frozen) Add one third cup of water and microwave for 3 minutes Defrost the broccoli florets (if frozen) Add 1/3 cup of water and microwave for 3 minutes For this step for Loaded Broccoli Casserole you have to Defrost the broccoli florets (if frozen) Add 1/3 cup of water and microwave for 3 minutes