Sweet Potato Fish Pie

Ingredients

• 1 potato (cut into even-sized pieces)
• 4-5 sweet potato mash or readymade mash of about 600-700G
• 1 tbsp olive oil
• 80 g butter (50g for filling and 30gm for mash)
• 2 tbsp plain flour
• 1 tsp dry or fresh thyme
• 1 tsp oregano
• salt & pepper (to taste)
• chilli or red pepper flakes (to taste)
• fresh nutmeg (grated)
• 3-4 spring onions (chopped)
• ½ tsp lemon zest
• 1 handful fresh parsley or coriander (roughly chopped)
• 400 g cod/haddock/salmon or any one of the fish (skinned and boned)
• 1 tbsp Dijon mustard
• 1 cube chicken stock (dissolved in ½ cup warm water)
• 2 cup Milk(1⅓ cup for filling and ¼ warm cup for mash
• 2-3 tbsp Cream
• 1 cup cheddar cheese (grated)
• ¼ cup frozen peas
• ¼ cup tinned corn (or frozen/fresh)
• ½ cup asparagus or green beans
• ½ cup carrots