Preheat the oven:
Preheat your oven to 350°F (175°C).
Prepare and bake the pie crust:
Roll out your low carb pie crust and press it into a pie dish. Prick the bottom with a fork and bake for 5 minutes. Remove from the oven and set aside.
Make the filling:
Prepare the low carb sugar-free sweetened condensed milk according to your recipe. Once ready, stir in the melted butter, vanilla extract, and egg until fully combined.
Assemble the pie:
Pour the sweetened condensed milk mixture into the prepared pie crust. Sprinkle the chopped pecans evenly over the filling.
Bake the pie:
Bake the pecan pie for about 40 minutes, or until the filling has set and the pie is golden brown.
Cool and serve:
Let the pie cool completely at room temperature, then refrigerate for at least 1-2 hours before serving. Enjoy your sugar-free pecan pie chilled or at room temperature.