Heat oven to 375 degrees. In skillet, brown ground beef and onion; drain. Stir in barbecue sauce, brown sugar and beans; heat until bubbly. Pour into 2 1/2-qt casserole. Separate dough into 10 biscuits; cut each biscuit in half crosswise. Place biscuits cut-side-down over hot meat mixture in spoke fashion around edge of casserole. Sprinkle over biscuits. Bake for 22-27 minutes or until biscuits are golden brown.