This is similar to shepherd's pie, but is made with chicken instead of lamb or beef. It's kind of a cross between a chicken pot pie and a shepherd's pie. You will need 3 cups of béchamel sauce for this recipe. I use Recipe #448904 for this. For the chicken, I usually buy a rotisserie chicken and chop the breast and thigh meat. I use frozen peas and cook them in the microwave for half the recommended time before adding them to the recipe.