Cauliflower and Broccoli Gratin

I was one of those weird kids growing up that actually enjoyed vegetables. Broccoli? Yes. Spinach? Yes. Cauliflower? Yes. Brussels sprouts? Yes. And I still enjoy them to this day. Im always on the look out to figure out new recipes to keep the veggie side dishes interesting.  Since this recipe has cauliflower, broccoli, potatoes, cheese, …