Preheat the oven to 350. Spray a 9 x 13 baking dish with cooking spray.
Add broccoli and cauliflower to the baking dish with 1/2 cup of water. Cover with foil. Bake for 20 minutes or until softened. Drain the water.
Mix seasonings with cream cheese, sour cream, mayo, half and half, and half the cheese in a large bowl.
Fold in the broccoli and cauliflower. Spread in the prepared casserole dish. To with the remaining cheese.
Bake until hot, about 15 min.
Notes
Substitutions: You can swap the cheddar cheese for Monterey jack, mozzarella or any other cheese that melts well. Additions: Feel free to add in some crumbled bacon, cooked chicken, cooked turkey, other steamed veggies, etc. This base creamy sauce is also great in other casseroles.Frozen Vegetables: In a pinch, you can sub in frozen broccoli and frozen cauliflower. Cook according to the package and drain it well before adding it.To Reheat: You quickly can reheat the leftovers in the microwave for 1 - 2 minutes or until hot. Another option is to warm it in the oven at 350 degrees for 10-15 minutes. Once heated through and the cheese has melted, you can serve. To Freeze: Either freeze the entire batch of in a large freezer-safe container or in individual servings. It’s best to thaw in the fridge before warming up.