Heat oven to 375°F. Place pie crust in 9-inch glass pie plate as directed on box for One-Crust Filled Pie. In small bowl, beat cream cheese, 1/3 cup sugar, the salt, 1 teaspoon vanilla and 1 egg with electric mixer on low speed until well blended. Spread cream cheese mixture into bottom of crust-lined pie plate. Sprinkle with pecans and chocolate chips.