Breakfast ideas please

[poptartpoptart]

This is not strictly a health question but here goes...

DS is 6 and at lunchtime and dinnertime he is a really good eater and eats a wide variety of food. However I am really struggling with what to give him for breakfast, particularly on weekdays. He has never really liked any sort of cereal, not even the sugary ones, porridge is a big no no and he also hates toast! I have been giving him breakfast bars (nutrigrain and similar ones) which he will eat, but he is getting fed up with the same thing each morning and I can't blame him. At weekends I am happy to make him scrambled / boiled eggs, a breakfast omlette, etc, but this isn't feasible during the week due to the ridiculous time we have to be up and out of the house for school / work. I gave him banana and yoghurt for awhile which he liked, but banana's tend to make him a bit constipated so I can't give him this every day.
Does anyone have any other good (and relatively quick) breakfast ideas please?

[AWimbaWay]

Throw a load of frozen fruit, yoghurt and oats into a blender, eat with spoon or add fresh juice to make a filling smoothie. Pancakes, croissants, muffins, crumpets, bagels?

[dikkertjedap]

Good quality muesli (not the ones full with sugar) with the juice of half an orange and yoghurt and a few grapes or blueberries. You don't need lots of muesli, just a few spoons as they are pure cereals and thus very nutritional. Given that he likes yoghurt he might not object to just a little muesli especially mixed with orange juice, yoghurt and grapes or berries.

[jubilee10]

Ds3 (5) has cheese or beans on toast (although he claims he doesn't like toast. Yogurt with chopped up fruit (strawberries, melon, pear etc.) I chop it up the night before and put it in a little dish in the fridge. Oatcakes and cheese. Cheese or bacon roll, bagel and peanut butter, something eggy or weetabix with chopped up fruit.