Clean and wash broccoli and cut into florets. Peel and chop the stems. Peel, wash and slice carrots. Cook broccoli and carrots in 1/4 l boiling salted water for 6-8 minutes. Drain, collect the cooking water
If necessary, wash the fillets and pat them dry. Brown the meat in hot oil all around. Fry over medium heat for 12-15 minutes. Season and remove
Peel and chop the onion. Steam in hot fat until translucent. Sweat flour in it. Stir in vegetable water and milk, bring to the boil. Melt half the cheese in it. Season sauce with salt, sugar and possibly cognac
Arrange the vegetables in 4 small or 1 large casserole dish. Cut the fillets into slices and spread on top. Add the rest of the cheese in flakes. Pour sauce over the top and bake in a hot oven (electric cooker: 200 °C/ convection oven: 175 °C / gas mark 3) for approx. 15 minutes