Well, if I am going to stop on a ride (with my 30-50 mile rides), I will eat a Clif bar.
If I am doing a solid ride with no stops (20-30 miles), I eat on Clif Shot Blocks out of a bag I have on my bike frame. I also make sure that I get a good amount of calories in before the ride.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"