This delightful dairy-free roasted cauliflower soup is topped with sizzling pistachio-rosemary oil, bringing together a rich flavor that's perfect for fall. It's a deliciously creamy soup made with roasted cauliflower, potatoes, and cashews, making it both hearty and satisfying. With optional toppings like fresh thyme, cracked pepper, and lemon juice, it elevates the dish even further, pleasing both vegetarians and vegans alike.