Step 1:

  • boil the pots until tender
  • Step 2:

  • Step 3:

  • if the fish is frozen (usually cheaper to buy if it is)..then defrost…
  • Step 4:

  • Step 5:

  • make the white sauce, adding half a teaspoon of mustard powder, or more to taste…season with salt and pepper…add the fish to it, stirring gently so it doesn’t break up (you need about 2cm chunks of fish)…let it simer gently for about 20 minutes to let the flavours infuse…add the peas for the last 5 mins…pour into a oven baking dish…cover with the mash, sprinkle with cheese and bake in the oven for about 30 mins on 180c
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