This Roasted Cauliflower Toast is a delightful and savory open-faced sandwich featuring tender roasted cauliflower infused with garlic, rosemary, and oregano, layered on toasted sourdough bread topped with a crispy Parmesan-panko crust, toasted hazelnuts, and fresh chives. It combines comforting roasted flavors with a nutty crunch and a bright lemon finish, perfect for a satisfying snack or light meal.