Fish pie

Preparation

Grate the Simply M&S mature Cheddar.

Method

1. 1 Preheat the oven to 200°C/180°C fan/gas 6.
2. 2 Melt 30g butter in a pan and stir in 30g flour.
3. 3 Cook, stirring, for 1 minute, then add the milk and cook, stirring, until you have a smooth sauce.
4. 4 Season to taste.
5. 5 Stir the frozen fish pie mix into the sauce and cook gently for 5 minutes.
6. 6 Remove from the heat and stir in the peas, 50g Cheddar and the parsley.
7. 7 Spoon into a large 1.2-litre ovenproof dish, or divide among 4 x 300ml dishes.
8. 8 Sift the remaining flour into a bowl.
9. 9 Cut the remaining butter into cubes and rub it into the flour until the mixture resembles crumbs.
10. 10 Stir in the remaining cheese and oats, and sprinkle evenly over the fish mixture.
11. 11 Put the pie or pies on to a baking tray and cook for 35 minutes (25 minutes for individual pies), until the crumble topping is golden.