Heat oven to 350 degrees. For crust, combine flour, sugar, butter, and salt in a food processor. Mix until mixture is crumbly.

Press into bottom and half an inch up the sides of a 10- by 15-inch baking pan. Bake 15 minutes, or until edges begin to brown. Cool on rack.

For filling, combine all ingredients except pecans, and mix until smooth. Pour into cooled crust.

If oven is off, preheat to 350F.

Distribute nuts evenly over top. Bake 30 minutes, or until filling is set. Cool on a rack before cutting.