Here be my take on Shepard's Pie:
Brown 1 pound of ground Goat (yes, of the Billy variety) with 1/2 cup white onion. Use the drippings from the meat, along with beef stock and flour to make some quick gravy. Dice about 5-6 carrots into rough 1 to 1 1/4 inch pieces, and add to the meat. Pour all of it into a pie dish and stir in the gravy. Coat the top with mashed potatoes, and bake for about 25-35 minutes at 350 degrees.
I like using goat, on account that it's delicious, and not often used.