In a large mixing bowl, combine ground chicken, garlic powder, onion powder, salt, and black pepper. Mix gently until combined.
Add chopped spinach, shredded white cheddar cheese, and grated Parmesan cheese to the chicken mixture. Fold gently until well combined.
Divide the mixture into four equal portions and shape each portion into a patty about 1/2 inch thick.
Heat olive oil in a skillet over medium heat. Cook the patties for about 5-6 minutes on each side until golden brown and cooked through.
Let the patties rest for a minute before assembling your burgers with buns and desired toppings.