My boys favorite:
Put frozen or fresh raspberries in the water before adding the quick oats.
Slice up a banana in the oats just after adding them.
Add dried apples and raisins while the water is preparing to boil.
We also do:
Slice frozen strawberries and add them to water just before the oats.
Sliced frozen Blackberries in the water as it prepares to boil.
Fresh or frozen blueberries.
If you ask my boys what their favorite breakfast is they ALWAYS say quick oats.