4 medium sweet potatoes
3/4 cup SPLENDA(R) No Calorie Sweetener, Granulated
1/2 cup milk
2 teaspoons grated orange rind
1/4 cup fresh orange juice
2 teaspoons vanilla extract
1 extra large egg, lightly beaten
1/2 cup all-purpose flour
3 tablespoons butter, melted
1 cup panko
1/2 cup finely chopped pecans
2 tablespoons butter, melted
3 tablespoons maple syrup

Preheat oven to 375 degrees F. Lightly grease a 13- x 9-inch baking dish.
Place sweet potatoes on a baking sheet; bake for 1 hour or until done. Cool to touch. Peel and mash. Reduce oven to 350 degrees F.
Combine sweet potatoes and next 8 ingredients in a large bowl. Beat at medium speed with an electric mixer until smooth. Spoon into baking dish.
Combine panko and remaining ingredients; sprinkle crumb mixture over top of casserole. Bake for 1 hour or until casserole is thoroughly heated.
Yield: 14 servings

Source: http://www.splenda.com