Marinate chicken thighs in a mixture of lemon juice, red wine vinegar, Gyro Hero seasoning, fresh parsley, minced garlic, olive oil, and Greek yogurt.
Grill the marinated chicken on a vertical spit grill until crispy on the outside and tender on the inside.
Slice the grilled chicken and assemble the gyro with the chicken, a Greek salsa made with tomatoes, cucumber, red onion, Kalamata olives, and feta cheese, and a yogurt sauce seasoned with Gyro Hero seasoning, oregano, and lemon juice.
