While onions are cooking, add turkey to food processor and pulse until finely chopped.
Add turkey, raisins, thyme, and white wine to skillet with onions, and cook until heated through. Season to taste with salt and pepper.
Remove from heat and stir in parsley.
Grease tart pan with oil.
In a separate bowl, mix one egg and one egg white (reserve the yolk for later) with milk.
Working quickly, lay two pieces of filo dough in tart pan to form a cross. The edges will hang over the sides of the pan. Brush the part that's inside pan with two tablespoons of the egg/milk mixture and lightly press down with the brush to form the dough to the shape of the pan. Avoid getting the milk mixture on the dough that's not in the pan because it's easier to work with later. Repeat this step two more times so that you have a total of six sheets of dough.
Add the meat mixture to the pan. On top of the meat mixture repeat the above procedure above with filo dough so you have six more layers (total of 12).
Begin to fold over each individual sheet that's laying over the tart pan, starting with the top, and brush the top of the tart with the milk/egg mixture. Repeat this with each of the individual 12 sheets.
Once all sheets are folded over, add 1 tablespoon of olive oil and the egg yolk to the remaining egg/milk mixture. Pour the remaining mixture overt the top of the tart, making sure that it's evenly coated.
Bake for 30-4 minutes, or until the top is golden brown.
Recipe by The Taste Edit at https://thetasteedit.com/thanksgiving-leftover-turkey-pie/