M.B.
Try to make it something protein-based... that lasts a lot longer than carbohydrate based, and doesn't cause the blood sugar spikes and drops.
I like breakfast tacos... I make 2 for myself most school mornings (I work in a local middle school). 2 strips bacon, 2 eggs, picante sauce, cheese, and 2 tortillas. That will keep me nice and level until I eat lunch at 12:30.
First I cook the bacon strips, and while those are cooking, I put two tortillas on a plate, put on a little picante sauce and shredded cheese. I scramble the eggs in a bowl. I then put the bacon on the tortillas, and put the eggs in the skillet. Once they are cooked (I do it omelet style.. not all chopped up), I fold it a bit, cut and slide onto the tortillas. 30 sec. in the microwave to heat it all up, and it is done... maybe 5 minutes total prep/cooking time?
I find that if I have cereal, juice, or toast for breakfast, I'm getting shaky about 11:30 from the blood sugar drop. (I usually eat breakfast at 7:30 am)