6
15 Minutes
40 minutes
1 tablespoon olive oil
800 g chicken thigh fillets, cut into 3 cm cubes
200 g button mushrooms, sliced
3 cloves garlic
2 tablespoons plain flour
1 ¼ cups milk
1 tablespoon Dijon or French mustard
½ teaspoon sea salt
¼ teaspoon ground white pepper
1 cup grated tasty cheese
2 sheets frozen puff pastry
1 egg, beaten
4 spring onions, finely sliced