Gather all ingredients. Preheat the oven to 425 degrees F (220 degrees C).
Fit pie crust into a 9-inch pie dish and place it on a baking sheet.
Combine pumpkin puree, condensed milk, eggs, and pumpkin pie spice in a large bowl; mix until combined.
Pour mixture into the pie crust. Bake in the preheated oven for 15 minutes. Reduce heat to 350 degrees F (175 degrees C) and continue to bake until filling is set, 35 to 40 minutes.
Remove from the oven, set on a wire rack, and cool completely before serving.
Serve and enjoy!
