Skip to main content

Page Contents: Recipe

Jump to Recipe

My most memorable fish pie was at Avoca café at the Powerscourt Estate in Ireland.  What I remember was it being packed full of fish and the seeded mustard mash on top.  This recipe tries to take a ‘healthier’ view of this tasty classic – with a white sauce made from reduced fat milk and a blended sweet potato and white potato mash.  While I think you could make the whole thing using the Thermomix, doing parts of it on the stove allow you to multi-task and get the whole thing into the oven sooner.

Fish Pie

Course Main Course
Servings 4 serves


  • 600 g fish fillets
  • 1 large onion peeled and diced into 0.5-1cm pieces
  • 1 clove garlic minced
  • cups frozen peas
  • Light olive oil for cooking
  • 2 carrots peeled and diced into 0.5-1cm pieces
  • 2 tbsp self-raising flour
  • 2 tbsp light olive oil
  • 2 cups reduced fat milk
  • Salt and pepper to season
  • 600 g sweet potato peeled and cut into 2cm pieces
  • 400 g potato peeled and cut into 2cm pieces
  • 100 g reduced fat milk
  • 100 g water
  • 1 tbsp seeded mustard
  • 250 g light tasty or cheddar cheese grated
  • Salt and pepper to season


  • Put potatoes, milk, water, salt and pepper into the Thermomix bowl and cook with the measuring cup (MC) off for 12 minutes | 100C | Speed 1
  • Put carrots into the Varoma bowl and put fish on the top tray. After the Thermomix stops, remove the MC, put the Varoma on top and cook for 10 minutes | Varoma | Speed 1
  • In the meantime, in a small saucepan, heat 2 tbsp light olive oil on medium-high heat, then add flour and stir to combine.
  • Slowly add milk and whisk to combine. Reduce heat and whisk occasionally until the mixture thickens. Do not let it boil
  • Once the Thermomix stops, remove the Varoma and put the butterfly into the bowl
  • Add mustard and then mash with MC on for 20 seconds/Speed 3
  • To finish the filling, heat olive oil in a large frying pan on medium-high heat, add onions and garlic and cook for 1-2 minutes until the onions are soft
  • Add peas and carrots into the frying pan, reduce heat to medium-low, add the white sauce and stir to combine
  • Remove any skin on the fish and break up into approximately 3-4cm pieces and add to the frying pan. Stir gently to combine
  • Turn on the grill in the oven to heat up
  • Put filling into a rectangular baking dish and cover with the mashed potato
  • Score the mash potato with a fork, sprinkle with grated cheese and put in the middle shelf of the oven.
  • Grill for approximately 10-15 minutes or until top is browned
Keyword Fish, Thermomix

You may also like…


[Last updated: June 2, 2013]

Leave a Reply

Recipe Rating