Prep the ingredients by grating the zucchini, cutting corn from the cob, and chopping onion and cilantro.
In a large bowl, mix the ground chicken, grated zucchini, corn, red onion, cilantro, beaten egg, garlic powder, salt, and pepper until just combined.
Form the mixture into 4 equal patties, about 1 inch thick.
Preheat the grill or a skillet over medium heat. Lightly oil the grill grates or pan to prevent sticking.
Cook the patties for about 5-6 minutes on each side, or until they are fully cooked through (internal temperature of 165°F).
Let the patties rest for a few minutes before serving, allowing the juices to redistribute.
Serve the burgers on your choice of buns with toppings like avocado, tomato slices, or a tangy sauce.