Ugh, I know its hard when you have your heart set on a new opening in the diet and then to have it taken away again
We have just been recommended by our paed no gluten or dairy until he is 2! That's another 7 months!!!
What about eggs for breakfast? Omelet with egg only is pretty quick. Waffles made with rice milk and two eggs ( if you have a waffle maker) as Claire said proridge or pancakes I often make the mix up the night before and put in fridge then it is all there), dry cereal as a snack.
It is hard to have to cook breakfast when you haven't been doing so, I am used to it now, its been over a year of cooked breakfast every morning! If you can get a waffle maker that's prety cool, not much clean up and also we makle savory waffles too, so add pureed greens or grated potato and zucchini. That's a good way to get the veges into them too!
Kai has always been dairy and gluten free and we rotate between the above meals for breakfast _+ fruit.