Add 1 cup of water in the bottom of a large skillet with a lid. Add broccoli and bring to a simmer. Cook 4-5 minutes or until tender crisp. Drain in a strainer and let cool.
Cook onion, garlic, and Italian seasoning in butter until onion is tender. Stir in cream cheese and cook on medium heat until smooth.
Add cream and broth and simmer 2 minutes. Remove from heat and stir in 1 ½ cups of cheese.
Combine chicken, broccoli, cauliflower rice, and sauce. Spread into a 9 x 13" dish.
Top with remaining cheese and bake 20-25 minutes or until heated through.