It depends on how far I plan on going. If it's for a short 20-30 spin around the block, I may skip the food (except maybe a handful of granola). But, if I'm going longer than that, I'll put some food down the hatch first. More than anything, I find some fluids help get my gears greased up.
When I compete in triathlons, I actually get up really early and have a big breakfast as I know I'll be burning tons of calories over the course of the next few hours.
Enjoy your next run.