Polvo à Lagareiro is a traditional Portuguese dish made with octopus. The octopus is first boiled until tender, then roasted in the oven with olive oil, garlic, and herbs. The result is a flavorful and tender octopus with a crispy exterior. Polvo à Lagareiro is often served with boiled potatoes and a drizzle of olive oil. It is a popular dish, especially in coastal regions of Portugal, where fresh seafood is abundant.