Serves 4

Butter, for cooking
1 leek, washed, trimmed and sliced
150g chestnut mushrooms, sliced
½ a head of broccoli, chopped into small florets
1 carrot, chopped
400g leftover roast chicken
30ml white wine
250ml cream
1 tbsp wholegrain mustard
1 tsp Worcestershire sauce
Large handful of frozen peas
1 x 320g sheet of puff pastry

To serve:
Green salad

1. Preheat the oven to 180˚C/160˚C fan/gas mark 4.
2. Melt a knob of butter in a large pan over a medium heat. Add the leek and cook for 3-4 minutes, then add the mushrooms and cook for another 4-5 minutes, seasoning with salt and black pepper. Transfer to a plate and set aside.
3. Melt another knob of butter in the same pan over a medium-high heat and add the broccoli and carrot. Cook for 2-3 minutes, stirring, until just beginning to turn tender. Transfer to a plate and set aside.
4. Return the pan to a high heat and add the wine. Allow to bubble for 1-2 minutes, then add the cream, mustard and Worcestershire sauce. Reduce the heat to medium and cook for another 2-3 minutes.
5. Add the leek mixture, the broccoli mixture and the chicken to the cream sauce and stir to combine.
6. Transfer the mixture to a baking dish and scatter over the peas. Roll out the puff pastry and place it over the top, trimming to fit. Brush with the beaten egg. Pierce 2-3 holes in the top with the tip of a sharp knife.
7. Place in the oven and bake for 25-30 minutes or until the pastry topping is golden brown and the edges are bubbling. Slice and serve with a simple green salad.

Per serving: 772kcals, 45.6g fat (15.5g saturated), 50.1g carbs, 5.9g sugars, 39.6g protein, 4.7g fibre, 0.393g sodium

MAKE IT YOURS:
Add 2-3 crumbled, crispy cooked streaky bacon rashers along with the chicken, if desired.