Preheat your oven to 425°F (220°C).
In a large mixing bowl, combine the pumpkin puree, sweetened condensed milk, eggs, cinnamon, ginger, nutmeg, and salt. Whisk until smooth and fully blended.
Pour the mixture into the unbaked pie crust.
Bake for 15 minutes at 425°F.
Reduce oven temperature to 350°F (175°C) and bake for an additional 35 to 40 minutes, or until a knife inserted in the center comes out clean.
Allow the pie to cool completely on a wire rack before serving. Chill if desired.