Cut the dried peppers open, clean and wash them, then soak in boiling water for 10 minutes.
Put the peppers, garlic and olive oil in a food processor and grind until you achieve a coarse paste texture.
Transfer to a bowl, add the spices, mustard and 3 tablespoons of olive oil and mix well.
Preheat the oven to 390 F (200 C).
Cut the fillets open as shown in the video.
Fill up with harissa and add the coriander and parsley. Put the rest of the olive oil in a baking pan, sprinkle the cilantro and add the cherry tomatoes.
Place the fillets in the pan, brush them with some more harissa and put the lemon slices on top.
Drizzle a little bit of honey and bake for 18-20 minutes.