Fish pie recipe

Ingredients

• 800 g Potatoes, peeled, cut into even sized chunks - For the mash
• 60 ml Semi-skimmed milk - For the mash
• 2 tsp Dijon mustard - For the mash
• 55 g Cheese - For the mash
• 500 g Skinless, boneless salmon fillet, cut into 4 strips
• 100 g Fine green beans, blanched and refreshed and halved
• 4 Spring onions, chopped
• 30 ml Olive oil - For the sauce
• 2 tbsp Plain flour - For the sauce
• 400 ml Semi-skimmed milk - For the sauce
• 1 Lemon, zest and squeeze of juice - For the sauce
• 3 tbsp Flat leaf parsley, chopped - For the sauce