Add mixture to one side of the dough, add cheese to the top, if desired, and then fold the dough over the top. Make sure you don't add too much filling because the dough will rip and not work out. Fold the edges over each other and pinch the edges closed. Brush with butter, I added garlic to my butter for extra flavor. Bake @ 350, for about 20 mins, or until the dough is nice and golden brown... I FORGOT TO TAKE A FINISHED PIC! :( they were so good that we chowed down as soon as they were out of the oven!
Here are some other filings that would be good:
left over turkey! mix it up with veggies, or left over green bean casserole, or cranberry sauce, or add some other flavors to change it up
Pizza fillings! what ever you like!
Pork! (my little brother said "pork and beans"... not my favorite, but hey! it might be yours!!!) I would mix it with potatoes, or maybe vegetables.
Make Breakfast, use eggs, sausage, or bacon, and potatoes!
Fruit! make small hand pies
Cinnamon spread with apples on the inside, and Cinnamon sugar on the top
Most important, just make sure that you add some sort of sauce to the meats because the dough can get dry, so its nice for it to be moist inside... there are many many different things you could do! have fun!