Preheat the oven to 190C/Gas5
Dry the cod fillets with kitchen paper and place in a buttered dish measuring about 20cm x 15cm; season with salt and black pepper; mix the olive oil and lemon juice together and sprinkle this over the fish; next spoon the arrabbiata sauce over the top
In a small bowl, mix together the fresh breadcrumbs, the spring onions, half the cheddar cheese and parsley; scatter this mixture over the fish and finally top with the remaining cheese
Bake in the preheated oven for 30-35 minutes
4 servings