Cauliflower with Spinach & Cheese Casserole

This was tasty enough, but I had a number of issues with it. First, I don't know in whose world this even fits in a medium casserole dish, much less can be mixed in one. I had to mix it in the giant bowl I use for making cookies, and then all of the vegetables wouldn't fit in my 3-quart round casserole dish when they were raw (I ended up making a separate, smaller dish for about two cups' worth of the mixture). Second, it doesn't mix unless you stir it while it's baking. What I ended up with was some roasted cauliflower, mushy tomatoes, dried out spinach, and melted cheese with a bunch of chicken broth in the bottom of the dish. I appreciate trying to cut down on calories, but this would have been much better served with a light cheese sauce than how it is. I'll keep it in mind for the future, but I'll be modifying it considerably before I try it again.