Place the spinach, onion, garlic, basil, and half a glass of water (hot) in a blender. Add salt, and pepper to taste, plus a dash of extra virgin olive oil. Blend well until the sauce becomes smooth and has a uniform texture.

Pour a good splash of oil into a frying pan. When the oil is hot, add the cod (cut into pieces). After a couple of minutes, add the clams. Lower the heat to medium.

Turn the fish over and let it cook on the other side.

Remove from heat after the last clam has opened.

Place the fish and clams in a deep dish. Drizzle with the freshly made green sauce.

Garnish with some chopped onion and salt flakes.