Leftover Roast Beef Pot Pie

top and bottom pie crust for a 10 inch pie, homemade or store bought (I made a whole wheat crust)

cooked, cubed beef (I used leftover pot roast)

total of cooked potatoes, carrots and or frozen peas (I used the leftover potatoes and carrots from the roast and then added frozen peas to make up the difference. Feel free to use your favorite combination of vegetables.

beef gravy (I used the leftover drippings to make some. You can make homemade or use storebought.)

Worcestershire sauce

Salt and Pepper to taste.

egg, beaten (to brush on the crust if desired)