250g frozen coalfish or salmon
½ teaspoon of salt
a pinch of white pepper
2 teaspoon of dried dill
1 dl of sliced leek

cheese sauce:
3 dl of milk
2 tablespoon of wheat flour
½ teaspoon of salt
a pinch of white pepper
1 dl of grated cheese

1. Preheat oven to 200 degrees. Grease a baking casserole.

2. Roughly chop the fish and put it to baking casserole. Season the fish and leek slices on fish.

3. Mix milk and flour in a pan. Heat mixture and stir at the same time with spatula and stop it when mixture thickens and boils. Keep the sauce boiling in low heat for 5 minutes.

4. Season the sauce with salt and white pepper and add most of cheese to it. Pour the sauce and the rest of the cheese on fish.

5. Bake the casserole in oven for averagely 25-30 minutes