Season the fish fillets with salt and pepper, sprinkle with oregano and pour 2 tablespoons of olive oil. Leave for 15 minutes.
During this time, in a blender, beat the bell pepper without the skin (if you do not have time to bake in the oven, you can do it on gas, slowly turn the pepper on all sides, the skin is well removed), cheese, parsley, 2 tbsp olive oil. Add salt and pepper to taste.
Cover the baking sheet with baking paper. Spread out the fish fillet. Spread the resulting mass on top.
In a blender, send bread, lemon zest, lemon juice and 1 tbsp olive oil.
The resulting crumbs spread the next layer on the fish fillet. Put in a preheated oven at 180°C for 20-25 minutes. Focus on your oven. Done. When serving, you can sprinkle with fresh herbs or green onions.