I agree with Bob--I'm a big fan of the Probars.
Tasty, and nothing to clean up either, which wins big points in my book.
Before I get out of my quilt (well, technically, after I get out of my quilt, go get the bear can, then climb back in my quilt), I eat a protein bar, a Hammer Gel, and a Payday. Then I pack up and hit the trail, and stop in 3-5 miles for a bigger breakfast. This way, when I do take my breakfast break, it serves two purposes: to give me a break from hiking, and to eat.
I found the same thing that you are finding--when I start with a big breakfast, it takes me too long to get out of camp.