To prepare crust, lightly spoon flour into dry measuring cups; level with a knife.
Combine flour and 1/4 cup sugar in a food processor; pulse 2 times or until combined.
Add butter; pulse 10 times or until mixture resembles coarse meal. Stir in pecans. Firmly press mixture into bottom of a 13 x 9inch baking pan coated with cooking spray.
Bake at 325 for 20 minutes or until crust is lightly browned. Cool completely.
To prepare filling, place 1 cup sugar and cream cheeses in a medium bowl; beat with a mixer at medium speed until fluffy. Fold in half of whipped topping.