Step 1

Marinate chicken: Add the chicken and marinade ingredients to a large freezer bag. Squeeze to mix all the ingredients around and transfer the bag to the fridge. Marinate for 1-4 hours.

Step 2

Cook chicken: Preheat the oven to 425F°. Equip a baking sheet with a roasting rack. Line the chicken on the rack and bake for 15-18 minutes, or until the edges begin to crisp. You can turn on the broiler for 2-3 minutes if you'd like more crispiness without drying the chicken out.

Step 3

Assemble gyros: Roughly chop the chicken into bite-sized pieces. Warm the pitas for 15-20 seconds in the microwave or toast them individually in a dry skillet over medium-high heat. Spoon some of the chicken into the pita, then top with tzatziki, onion, and tomatoes.