They are quick and easy to make - I've managed to whip one up on a weekday morning to enjoy before heading to work. We tend to have ours with golden syrup, but berries and sugar, apples or other fruit would be a good healthy alternative as well. The added bonus is it is quite filling, and will keep you going until lunch. You can reheat leftovers in the microwave the next day, and they are almost as good.
Here are a couple of recipes to get you started - why not try one this weekend?