Preheat oven to 425 degrees. Place blueberries in pie crust. In a medium bowl mix flour with sugar; gradually add evaporated milk, stirring until smooth.

Whisk in eggs and vanilla until blended; pour mixture over blueberries. If desired, sprinkle with dash each ground cinnamon and ground nutmeg.

Bake 15 minutes; reduce heat to 350 degrees and bake 35 minutes longer. Cool completely. Serves 6.