Not necessarily! If you would like to stick to the traditional version of the pie, then you will want to use mashed potatoes.u003cbr/u003eu003cbr/u003eHowever, if you feel like being a little more adventurous in your culinary endeavors, you can use a biscuit mix like Paula Deen often does!u003cbr/u003eu003cbr/u003eThis adds something a little different to the pie and makes the dish feel a little more fun.