Steam cauliflower in the microwave for 8 minutes. Can use pasta boat with steamer attachment, a microwave vegetable steamer or a bowl with 1/4 cup of water covered with a plate. (Drain with strainer if using bowl with plate cover method)
Put the steamed cauliflower in a bowl while still hot and add cream cheese, sour cream, parmesan cheese and Italian seasoning.
Mix in until well combined and then use a masher to mash the cauliflower
Add green onions and mix it in
Flatten to make a smooth even layer for the mashed cauliflower
Add cheddar cheese evenly covering the top
Put in oven at 350°F for 20 to 25 minutes
Take out of oven and wait few minutes before serving. Enjoy!
Notes
When steaming the cauliflower, it should be easy to mash with a fork
In case of using a pasta boat with vegetable steamer attachment or microwave steamer separating water from vegetables there is no need to drain the cauliflower in the strainer.