On a floured surface unroll a pie crust and cut in half.
Using your hands, mix the remaining ingredients except the egg yolk together in a large bowl and divide into 4 equal parts.
Place ¼ of the meat mixture on one side of the halved pie crust. Dip your pointer finger in water and run around the edge of the crust half. Fold over to form a wedge and crimp together. Repeat with the remaining meat and pie crust.
Cut 2-3 slits on the top of eat pie and brush with beaten egg yolk (optional).
Place on a baking sheet and bake 40-45 minutes.
Recipe by The Spice Kit Recipes at https://www.thespicekitrecipes.com/michigan-pasty/