Beef Wellington is a classic British dish that is made with fillet steak, pâté, and puff pastry. The fillet steak is seared and then coated with pâté, which adds a rich and savory flavor. The steak is then wrapped in puff pastry and baked until the pastry is golden and crispy. Beef Wellington is often served with a red wine sauce and is a popular choice for special occasions or dinner parties. It is a decadent and impressive dish that is sure to impress your guests.