1. Preheat oven to 350°.
2. Mix together milk, eggs, sugar, cinnamon and nutmeg in a blender or food processor.
3. Add sweet potatoes and blend until mixture is smooth.
4. Pour mixture into 9 x 9-inch casserole dish lightly sprayed with cooking oil.
5. Bake 45-50 minutes or until mixture has set.
6. Top with pecans and serve.