Steamed fish with potatoes Peel the potatoes, cover with water, salt and put on the fire to boil. Place the fish fillets on plastic wrap, sprinkle with lemon juice, white wine, season with your favorite spices, salt if desired. Instead of a lid, cover the pot with potatoes (after the contents boil) with a steaming device, on which place the roll of fish. Cook for 20-25 minutes.