This cauliflower and potato casserole is a comforting and flavorful dish that is perfect for a cozy dinner. Cauliflower and potatoes are cooked until tender, then mashed with butter, milk, and spices to create a creamy and delicious filling. Top with breadcrumbs and bake until golden and crispy. Serve as a side dish or a vegetarian main course for a satisfying and nutritious meal that the whole family will love.