After the dough has been in the refrigerator for about 45 minutes, preheat the oven to 350 degrees Fahrenheit.
Dice the rutabaga, potato, onion and steak into a small dice. You can chip or slice the vegetables if you prefer. I prefer the dice as I think it allows more flavor.
Pull the dough pucks from the refrigerator and use the rolling pin to roll out a round circle about 1/8th inch thick. If you stack the dough rounds, add a little flour between each one or use parchment paper to separate. Do this with each puck. You want about a 9" diameter. You can use a 9" cake pan as a guide.
Clear your counter and set up an assembly line of dough rounds, diced beef, vegetables, butter, salt and pepper and egg wash. Lay out a dough round. With your pastry brush, brush egg wash onto the outer edge of the pasty. Layer all the veggies and the beef in this order for a nice balance: Onion Rutabaga, Steak, Potato, Rutabaga. Top with the 1/5th of the butter (1 butter piece for each pasty). You should end up with roughly 1 cup of veggies and meat per pasty. Lightly salt and pepper. (Use a couple of pinches of salt and a pinch of pepper as a guide)
Fold the round in half over the veggies and meat, pushing the veggies and meat back into the pasty if they fall out of the sides. Using your hands in a half moon shape, shape and seal the ingredients inside the pasty so that it looks like a mounded half circle or rising sun shape. Where the sides of the dough circle meet, seal the edges (pick out any veggies or meat that get trapped) with the rolling pin or your fingers and then crimp that edge or you can decorate the edge with a fork for an easier seal. Use the butter knife or a fork to make a vent hole in the top of your pasties so that steam can escape during the cooking process.
Place each pasty onto the cookie sheet leaving room for some expansion in size and brush with the egg wash. This creates a golden brown pasty. Wherever you paint, you will have a beautiful brown. Whereever you miss, you will have a pasty pasty!
Bake the pasties for about 55 minutes. Watch for the bubbling from the vent hole. At this time the insides will be soft and tender but go for a nice golden brown on the outside before you pull it from the oven.