Cauliflower and Chicken Sausage Casserole

Can you tell I use a lot of recipes from TheKitchn?  They are without fail delicious.  I use hot Italian chicken Sausage from Sprouts which is so flavorful, I often get away with less than the recipe suggests.  I also use gluten-free breadcrumbs.  

http://www.thekitchn.com/recipe-cauliflower-italian-sau-137481