Unroll 1 piecrust, and place on a lightly floured surface; lightly brush top of crust with water. Unroll remaining crust, and place over bottom crust; gently roll into a 10" circle. Fit into a 9" deep-dish pieplate; fold edges under, and crimp.
Stir together butter and next 5 ingredients in a large bowl; stir well. Stir in pecans and remaining ingredients. Pour filling into piecrust.
Bake at 325° for 1 hour and 15 minutes or until set, shielding crust after 45 minutes with aluminum foil, if necessary. Cool completely on a wire rack.