Cut the fish into cubes and fry. Cut the leek into diagonal strips, add to the fish in the wok. Finely chop the carrot and add it to the pan. Fry briefly, then add the pineapple pieces.
When the fish and vegetables are done, add the coconut milk and sour cream. Season with salt, pepper, vegetable stock powder and curry and just let it get hot.
Serve with rice or Chinese Mie noodles.
Variation: White meat can be used instead of fish.