Food-wise, if Fairfax Fare is open before 10:30am, they're probably serving a few "breakfast" items. That's not really the norm for Fairfax Fare... breakfast options are usually only available at peak seasonal times.
Later in the day, (any time after say... 11am) the menu is more typical American theme-park style food. It's a bit difficult to nail down because the small menu board changes often, but there's generally a hot sandwich or two (i.e. pork or chicken etc.) and hot dogs, etc. We have found giant loaded baked potatoes at Fairfax as well.