First, start by heating the oven to 375° and lightly greasing an 8x8 or 9x9 baking dish. Use a bit of oil, butter, or spray.
Then, add about 2 inches of water to a large pot, set it over medium-high heat, and bring the water to a low boil. Once the water is bubbling, add the cauliflower and broccoli florets to the pot.
Let them cook for 3-5 minutes until they have softened and are easily pierced by a fork. Be careful not to overcook them as they will be mushy.
Once they are ready, drain the water and set them aside.
Next, in a large mixing bowl, stir together the softened cream cheese with the seasonings.
Once that is combined sprinkle in half a cup of shredded cheese and stir again.
Then, add the steamed broccoli and cauliflower to the bowl and stir to coat them with the cream cheese mixture.
Next, pour the mixture into the prepared baking dish. Spread it out evenly.
Then, sprinkle on the remaining cheese on top.
Finally, place the dish in the preheated oven. Bake for 15 minutes until the mixture is bubbling. For a crispier browned top, broil for 2-3 minutes.
Serve warm.