Preheat the oven to 375~. Mash enough of the cooked beans to make 2 cups, and place in a blender, a portion at a time, with the milk. Blend until smooth.
Combine with the eggs, sugar, salt and spices. Pour into unbaked pie shells. Bake for 1 hour or until a knife inserted into center comes out clean. Yield: 2 9" pies.