Grease 9-inch round baking dish with cooking spray. Place pie dough in center and press with your hand to make the dough flat and cover the entire inside of the dish.
With your fingers, press edges of pie dough against baking dish.
Peel pears with paring knife or vegetable peeler.
Cut in half, lengthwise.
Cut out core and discard.
Slice pear into very thin slices, crosswise.
Spoon almond filling on top of pie dough in baking dish.
Spread evenly to the edges of pie.
Slide spatula or flat knife under one half of sliced pear.
Transfer to pie.
Press gently with spatula to fan out the slices.
Repeat with remaining pear halves, fitting either 5 or 6 of them on top of pie (whatever fits, but do not overcrowd!).
Bake in preheated oven 50 to 60 minutes, or until the filling is set and well-browned.
Heat peach jam in microwave for 30 seconds. Spoon onto pie evenly to glaze. Cool tart on wire rack to room temperature.