Shepherd's Pie

When it comes to comfort food, many people harken back to their childhood.  In my case, I harken back to someone else’s childhood.  Growing up I didn’t eat mashed potatoes.  Or if I did, my mom made them from a box of dried flakes in the amount needed for a specific meal.  We certainly never had leftover mashed potatoes in the fridge, begging to be eaten or used in