Mix the flour, sugar, baking powder, and salt in the bowl of a stand mixer. Add the butter one Tablespoon at a time and mix until the mixture resembles fine crumbs. Add the egg and mix until incorporated.
Press ⅔ of the mixture onto the bottom of a greased 13x9-inch baking dish. Bake at 375 degrees Fahrenheit for 8 to 10 minutes or until the crust is matte (not shiny) and starting to lightly brown. Allow to cool slightly.
In a large bowl with a hand mixer, beat the cream cheese, sugar and extract until sugar dissolves and no lumps appear. Dollop the cream cheese mixture over the warm crust. Gently spread evenly with a spatula. The cream cheese mixture will sink into the crust a little bit, that's okay, just use small dollops and gently spread it together.
Dollop the strawberry pie filling in small spoonfuls over the cream cheese layer. Gently spread evenly with a spatula.
Crumble the remaining crust evenly over the top of the strawberry pie filling. Bake at 375˚F for another 20 to 25 minutes until the top is lightly brown and the filling is bubbling in the center. Allow to cool completely before cutting and serving.