Add some Oil in a Pan and saute the Onions for about 1 minutes then add the curry powder, Thyme, and Salt and mix together
Add the ground beef and cook until it's well browned then add the carrots and potatoes and cook till tender
In a separate bowl, mix the flour and Water until smooth and pour the Flour mixture inside the filling (this will thicken the filling)
Remove from heat and allow to cool

Roll out the Dough to about 1/4 of an inch thick then cut out your desired size circles and scoop about 1 to 11/2 Tablespoons of filling (don't overfill so you can be able to easily close the Pie)
Crack an Egg in a small Bowl, add 3 tablespoons of water and whisk together then use a pastry brush to brush the edges of the Pie
Fold the pie over to seal (and crimp the edge if not using a pie cutter) and use a fork to create a couple of vents on the Pie (this will help prevent air pockets in yourpie

Brush the surface of the Pie with the Egg wash and arrange the Pies on a parchment paper lined tray (You can just rub the Baking Pan with Butter or Margarine as well)
Bake at 350 degrees Fahrenheit for 20 to 3 0 minutes or till golden Brownn.
There you have your fresh Nigerian meat pie. Serve with a cup of hot Tea for Morning breakfast or a chill drink for afternoon or evening snack. Enjoy!