Nothing beats D'lish after a nice Camelback hike.
Some of the best iced coffee in town and the food choices are healthy, appropriately portioned, and diverse. I've enjoyed mostly their vegetarian options, but their carnivorous offerings are really, really tasty as well--I recommend the Low Carb Breakfast, which is mixed greens and fresh tomatoes topped with a hash brown, fried eggs, and some pesto.
I don't recommend the "drive thru", you'll be waiting for looooong time (although I've heard you can call ahead and reduce this wait). The seating inside is a bit cramped (the new Tempe location has a cozier patio) but I kind of like that charm in a place like this.