1In large bowl, mix oats, brown sugar and milk; let stand 10 minutes. Meanwhile, in small bowl, mix yogurt and maple syrup until well blended; refrigerate until serving time.
2Stir egg product and oil into oat mixture. Stir in remaining ingredients until blended. Let stand 5 minutes longer. Meanwhile, heat waffle maker; grease with vegetable oil if necessary (or spray with cooking spray before heating).
3For each waffle, pour batter onto center of hot waffle maker, spreading batter to edges. (Check manufacturer's directions for recommended amount of batter.) Close lid.
4Bake 4 to 5 minutes or until steaming stops and waffle is golden brown. Carefully remove waffle. Repeat with remaining batter. Serve waffles with topping.