Heat oven to 200c
Heat the oil in a pan
Add the onions and sauté until softened
Add in the mushrooms and cook for another 4 minutes
Add in the magic mix and once melted add in a little stock
Gradually add in more stock whisking all the time
Add in the mustard and tarragon , mix well
Stir through the chopped chicken
Pour this mix into a pie dish
Top with the pastry, score the top
Brush with beaten egg and decorate
Bake for about 20 minutes until the pastry is risen and golden
Par cook 100g of pasta per person
Stir through the chicken mix , add a little of the pasta water .
Top with mozerella bake for 15-20 mins
Cook 100g pasta per person
Stir through the chicken and serve
Servings 4