HADDOCK & LEEK AU GRATIN WITH SWEETCORN MASH

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Haddock & leek au gratin with sweetcorn mash image

Leek and spinach are layered up with white fish fillets and cheese sauce then topped with golden mash in this delicious, low-fat oven bake.

Provided by Sara Buenfeld

Categories     Dinner, Fish Course, Main course

Time 1h

Number Of Ingredients 10

350g potatoes , quartered
195g can sweetcorn in water
240g bag ready-washed spinach
2 leeks , thickly sliced
300ml skimmed milk , plus 3 tbsp
15g unsalted butter
15g plain flour
½ tsp English mustard
75g mature reduced-fat cheese , grated
2 x 125g fillets of skinless haddock

Steps:

  • Heat oven to 200C/180 fan/gas 6. Boil the potatoes for 15-20 mins until tender, then drain. Reserve 3 tbsp corn and blitz the rest (with its juice) using a hand blender or a food processor until completely smooth, then mash into the potatoes. Cook the spinach following pack instructions - if you have a microwave, choose this method.
  • Put the leeks in a pan with the 300ml milk and the butter. Cook gently, part-covered, for 8 mins until the leeks are tender. (Keep an eye on things as milk can easily boil over.) Mix the 3 tbsp milk with the flour and mustard, then stir into the leek mixture - keep stirring until thickened. Take off the heat and stir in three-quarters of the cheese.
  • Squeeze as much liquid as you can from the spinach, then arrange on the base of 2 gratin dishes. Place a fish fillet on top of each, then spoon over the leek & cheese sauce. Top with the sweetcorn mash. Mix the remaining corn and cheese, and scatter on top. Place the dishes on a baking tray and cook for 25 mins until the fish flakes when tested and the top is golden.

Nutrition Facts : Calories 618 calories, Fat 13 grams fat, SaturatedFat 6 grams saturated fat, Carbohydrate 70 grams carbohydrates, Sugar 20 grams sugar, Fiber 11 grams fiber, Protein 50 grams protein, Sodium 2.1 milligram of sodium

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