Cauliflower Au Gratin Recipe. Spicy Chicken Tacos. Save unwanted broccoli stems and bake them into a cheesy potato gratin. Recipe for Easy Chicken Broccoli Casserole Paleo, Low Carb, and Gluten Free is found on Grass Fed Girls blog. Cheesy-Chicken-Broccoli-Potato-Au-Gratin.jpg' alt='Broccoli Au Gratin' title='Broccoli Au Gratin' />Bistro Moncur Woollahra is an institutional restaurant in Sydney that offers the finest French cuisine in a classic bistro setting. From potato sides to chicken casseroles, an au gratin topping makes everything delicious. Explore the possibilities in our collection of au gratin recipes.