Twice Baked Cauliflower

2 1/2 pounds cauliflower
2 tablespoons melted butter
2 tablespoons sliced green onions
1/2 cup sliced bacon cooked, divided use
2 cups shredded Cheddar cheese divided use
1 cup sour cream
2 tablespoons cream cheese optional

Steam Cauliflower in until soft. In the Instant Pot I recommend 7 minutes for super creamy cauliflower, and 5 minutes if you don't mind more texture. Perform a quick release on your Instant Pot.
Place cauliflower into a large bowl, and add 2 tablespoons melted butter, sliced green onions, 1 cup of shredded Cheddar cheese, 1/4 cup bacon, sour cream, and cream cheese(if desired)
Mix with a blender until smooth. Place in a 2-quart casserole dish and top with additional cheese and bacon.
Bake for 20 to 25 minutes at 350 degrees.