Preheat oven at 205⁰c.

In a nonstick pan melt 1 tbsp of butter on low heat, add the the onions and garlic saute for 2 mins.

Add in the finely chopped mushrooms, season with Nutmeg & a pinch of salt and pepper.

Cook & stir for 5 mins, once done, set aside and place on a kitchen towel to cool.

Melt the remaining butter in the pan, add the chicken with some salt & pepper.

Cook on high heat for about 3 mins on each side. Once done, remove and let it cool.

Divide the pastry into 4 square pieces. Cover each square with a thin layer of Spinach, mushrooms mixture and the chicken. Wet the pastry edges with some water & fold it over the chicken and the mixture in the shape of a packet. 

Turn over the pastry down on a baking sheet, cut the top of the pastry and give an egg wash and sprinkle some sesame seeds.

Bake for about 30 mins.

Serve.