We just can't get enough of this in our house...it's such a comfort food. There are many versions of this recipe and I came up with this after finding out how to make the most delicious mashed potatoes ever and then combining that with the shepperd's pie and the result is scrumptious! This recipe can be made ahead and refridgerated or frozen and then you can pop it in the oven for an easy weeknight meal. I usually make it all in one day because we can't wait to eat it. Cooking times listed below are for making it the same day and would have to be adjusted if frozen.