Riberalves Codfish Pie - Riberalves

Ingredients

• 500 g flaked salt cod +4M
• 500 g potatoes
• 200 g frozen peas
• 1/2 lemon
• 1 tbsp. unsalted butter
• 1 carrot
• 1 onion
• Olive oil
• 500 ml milk
• 40 g flour
• 50 g frozen spinach
• 40 g grated Parmesan
• Sea salt to taste
• Black pepper to taste