Preheat oven to 400°F. Lightly grease 2-quart baking dish or coat with nonstick cooking spray; set aside. Line baking pan with aluminum foil.
Pierce sweet potatoes with fork in several places. Place potatoes about 2 inches apart on prepared baking pan. Bake 40 to 60 minutes or until tender. Remove from oven; let stand until cool enough to handle.
Peel potatoes, place in large bowl and mash with potato masher until smooth. Add orange juice, 2 tablespoons butter, 2 tablespoons brown sugar, orange peel, cinnamon, cumin and salt; mix well. Spread evenly in prepared baking dish.
Combine pecans, flour and remaining 1 tablespoon butter and brown sugar in small bowl; mix well. Sprinkle evenly over potatoes.
Bake 30 to 35 minutes or until hot. Let stand 5 minutes before serving.