This easy Broccoli and Cauliflower Gratin Casserole will show you how to turn simple vegetables like broccoli and cauliflower from an ordinary side dish to an extraordinary, creamy, delicious and budget friendly French inspired side dish your entire family will love. In my step-by-step tutorial I will show you how easy it is to make a healthy, from scratch, nutrient dense vegetable side dish using only whole ingredients. This recipe is intended for the whole family not just those on a low carb, keto lifestyle.