In large pan heat oil over medium heat. Add onion and garlic; cook 2 minutes, stirring frequently, until tender.
Gradually stir in soup and half and half, cooking and stirring until bubbly and thickened.
Stir in chicken and peas and carrots; mix with spoon to combine.
Pour mixture in a 9x13 inch baking pan.
Place pie crusts on top for an extra thick crust. On a lightly floured surface roll out dough to a 11x15 in rectangle.
Place crust on top of filling and pinch the sides to the pan.
Brush dough with egg wash.
Bake for 30-35 minutes or until crust is golden brown.