Spray a 10-inch Bundt pan evenly with cooking spray. Sprinkle bottom evenly with 1/3 cup pecans.
Microwave brown sugar, cinnamon, butter, and orange juice in a 1-quart glass bowl at HIGH 2 minutes or until thoroughly heated, stirring once. Dip half of biscuits in sugar mixture; arrange evenly in pan. Sprinkle with remaining pecans. Dip remaining biscuits in sugar mixture; arrange in pan.
Bake at 350° for 25 to 30 minutes or until done. Cool in pan about 2 minutes. Invert pan onto plate, and serve warm.