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 salt. The result is a tender and flavorful octopus with a crispy exterior. Polvo à Lagareiro is often served with boiled potatoes and a drizzle of olive oil. It is a simple yet delicious dish that showcases the natural flavors of the octopus.