1. Preheat oven to 350°. Fit piecrust into a 9-inch pie plate according to package directions; fold edges under, and crimp. Place pecan halves in bottom of piecrust.
2. Whisk eggs in a medium bowl; whisk in remaining ingredients until blended. Pour filling over pecan halves.
3. Bake at 350° for 1 hour. Let cool completely on a wire rack.