Think of these kale chips as a healthful alternative to potato chips during the summer months when kale is apt to be abundant. They are best served fresh -- store any you don't eat at once in a paper bag to maintain crispness.
Rip the kale into bite-sized pieces (discard the stems) and toss with olive oil (or olive oil spray), salt, and pepper, and roast for about 15 minutes.
For an extra kick, add any spices you like (red pepper flakes, chili, cumin, curry, garam masala, etc.).