Steak Pie with Peas, Mashed Potatoes and Gravy

double crust pie pastry (without sugar) or enough puff pastry to cover the top of your dish

good quality stew meat, preferably organic, grass fed, cut into bite sized pieces, tossed in flour

very large or 2 medium onions, diced

olive oil

beef bouillon or 2 OXO beef cubes

Kosher or sea salt

freshly ground black pepper

splash of Worcestershire Sauce, if desired

cold water (or beef stock-if using stock, omit the beef bouillion or add less)

egg white, beaten with ½ tsp water (for brushing pie crust or puff pastry)