Cook the green noodles in salted water according to the instructions on the packet. Then drain, rinse in cold water and put in a buttered baking dish.
Fry the fish fillets seasoned with lemon juice and pepper and place on top of the pasta. Clean the leek or spring onions, cut into rings and sweat in the frying stock. Pour in the vegetable stock or white wine and simmer for about 5 minutes. Then tie a little with cream. Place the tomato slices over the fish fillets and pour the leek sauce over them.
Cook for about 15-20 minutes in the preheated oven at 180 ° C hot air. Serve hot.