Step: 1/9

Let the spinach thaw.

Step: 2/9

Preheat the oven to 200°C (180°C fan, gas 6). Lay one salmon fillet, skin side down, on a sheet of baking paper. Cut 2 slices from the lemon and set aside. Sprinkle the salmon with some lemon juice and salt.

Step: 3/9

Wash the herbs and shake dry.

Step: 4/9

Place the spinach in a bowl and mix in some herbs. Peel and slice the garlic, and add to the spinach with the crumbs. Season with salt and nutmeg.

Step: 5/9

Peel the onion and cut into rings.

Step: 6/9

Arrange on the salmon fillet. Add the remaining herbs and season with pepper.

Step: 7/9

Spread the spinach over the onions.

Step: 8/9

Cover with the second salmon fillet, place the lemon slices on top and tie it all together with kitchen string.

Step: 9/9

Brush the fish with oil, wrap in the baking paper and seal well. Bake in the oven for 30 minutes. Serve with salt potatoes.