To begin making the Chicken and Mushroom Pot Pie Recipe, make the pie pastry and keep it ready to be used. 

To make the filling, heat a pan with oil on medium heat, add garlic and onions and saute until the onions get caramelized. This will take about 4-5 minutes.  

Add chicken pieces and give it a toss until the chicken is almost tender.This will take about 12-15 minutes.  Now add the mushrooms and saute till the mushrooms are almost done. Add all the seasonings- dried oregano, dried rosemary,  black pepper powder, salt and saute well.

Reduce the flame and add cream at the end and basil leaves and mix well. Check for seasoning. 

Pre heat the oven to 180 degree Celsius for 10 minutes. Start rolling the pastry dough by dusting some flour over your kitchen table.

Roll it about 0.5 centimeter thick to a round shaped flat dough. Carefully Place it over the pan that contains the filling and press the edges.

Cross it in the center and egg wash the pie pastry using a pastry brush and bake it in the oven for about 25 minutes. 

Serve the Chicken and Mushroom Pot Pie Recipe along with Garlic bread, salad by the side to make a complete wholesome meal.