Stuffed mackerel with oven-baked mushrooms

Instructions

1. Cut the mushrooms into small cubes.
2. Peel and chop the onion.
3. Heat a tablespoon of vegetable oil in a frying pan.
4. Add the mushrooms and sauté for a few minutes.
5. Once the liquid has evaporated, add the butter and onion.
6. Fry for another 4-5 minutes.
7. Mix in the sour cream, salt and pepper, let cool.
8. For the mackerel, make two parallel slices from either side of the spine.
9. Keep a few inches from the tail fin.
10. One Cut the backbone from both sides with kitchen scissors, carefully remove.
11. Remove the remaining bones, innards and the dark film of skin.
12. Rinse the fish under running water, pat dry.
13. Salt and pepper inside and out.
14. Baking tray with Line baking paper, grease with vegetable oil.
15. Stuff the mackerel with the mushroom mixture and place on the baking sheet.
16. Cover with aluminum foil.
17. If the fish is not stable, use aluminum foil to support it.
18. Baking sheet in de Place in the oven and bake at 190°C for about 20-25 minutes.
19. Remove the foil, sprinkle the fish with grated cheese.
20. Prepare for another 10 minutes.
21. Remove the stuffed mackerel from the oven and serve immediately.