I usually have a smoothie in the morning that contains a good balance of protein, good carbs and some fat, in an easily-digestible form.
I mix a liquid (pomegranate juice or soy or rice milk), a protein powder (usually hemp, but I've used pea/rice or just pea...I avoid soy protein powders, and my digestion thanks me for it!...or a mix like Vega, that contains hemp, chlorella and maca root), some frozen berries or frozen banana (I peel ripe bananas and cut them into chunks, then put them in a tuppeware container in the freezer, taking out the ones I need) and sometimes a green food supplement (made of wheat grass and such).
And what is it you can't stand about oatmeal? If it's the texture, there is a fix for that. I find that rolled oats or quick-cook oats are too mushy and slimy at times: not very appetizing. Better, IMO, are oat groats or scottsh oats or steel-cut oats (all the same thing), which are whole oat grains that are chopped up. They have a chewy texture and a somewhat nutty flavor.
They take longer to cook (20-30 minutes), but you can save time by making a big batch twice a week, then refrigerating the extra in individual bowls, and the next days, chop up the solid mass it has become;-) , add some liquid like soy milk or even apple juice, and microwave it for a minute or so.
Another option would be to try other cooked grains, like quinoa (high protein, with all essential amino acids), teff, amaranth.
The problem, IMO, with most dry cereal is that it is made from flour, and even though it is 'whole grain' flour, it's not as good as whole grains themselves or minimally processed grains, IMO.