Cheesy Fish Pie with Kale – Check My Body Health Switzerland

Ingredients

• 400g Maris Piper potatoes , cut into chunks
• 1 tbsp butter
• 1 tbsp flour
• 400ml whole milk, plus 1 tbsp
• 1 tsp Dijon mustard
• 200g cheddar, gruyère or emmental, grated
• 400g fish pie mix (we used a mix of salmon, haddock and prawns)
• 100g frozen peas
• 100g shredded kale
• 2 spring onion, finely sliced
• 2 tbsp parmesan, finely grated