Preheat oven to 375 degrees
Bring the store bought pie crust from the fridge to the counter to come to room temperature, about 20 minutes
Meanwhile, peel pears using a standard vegetable peeler.
Cut pears in half, use a melon ball tool to remove the core & seeds.
Cut into thin slices
In a medium size bowl, combine the pear slices with sugar, cinnamon, nutmeg, salt & flour. Set aside.
Line a sheet pan with parchment paper.
Unroll the store bought pie crust onto the parchment paper.
Pile the pears in the center of the crust, leaving about an inch border all around.
Fold the edge of the crust up all the way around.
Dot with butter.
Bake for about 40 minutes.