Sweet Potato Casserole

This recipe is from my friend and neighbor, Rachel. I personally don't care for sweet potatoes, but my mom and dad enjoyed this at Thanksgiving.

3 cups mashed sweet potatoes
1 egg
1 cup sugar
1/2 teaspoon nutmeg
1/2 teaspoon cinnamon
1 cup brown sugar
1/2 cup pecans
1/4 cup butter
1/2 teaspoon cinnamon
1/3 cup flour
Beat egg and potatoes. Blend in sugar, nutmeg and cinnamon. Spread in a 2 quart casserole dish. In another bowl, combine remaining ingredients. Spread over filling. Bake at 350° for 30 minutes.