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  • 300ml double cream
  • 100ml milk
  • 2 x 120g tins tuna in spring water
    drained
  • 1 bunch spring onions
    chopped including green bits
  • 100g gruyère
    grated
  • 750g sweet potatoes
    peeled and cut into thin slices (use a mandolin or food processor if you like)
  • to serve green salad

Nutrition: per serving

  • kcal769
  • fat50.5g
  • saturates31.1g
  • carbs52.9g
  • sugars0g
  • fibre8.7g
  • protein21.4g
  • salt0.9g

Method

  • step 1

    Heat the oven to 180C/fan 160C/gas 6. Mix the cream, milk, tuna, onions and most of the cheese.

  • step 2

    Layer up the sweet potato and tuna mix then scatter over the rest of the gruyère. Bake for 40-50 minutes until bubbling and golden. Serve with a green salad.

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