1For the chicken preparation, combine all ingredients in a large bowl except for the meat. Add the chicken slices and coat them well.
2Let the chicken marinate for a while to prepare the homemade tzatziki.
3For the Greek yogurt tzatziki, combine all the ingredients in a bowl. Season generously with salt and pepper (adjust it if necessary) and keep refrigerated.
4Heat a non-stick skillet, cook chicken 3 minutes on each side until golden brown.
5To assemble each gyro, garnish a tortilla with lettuce leaves, tomato slices, cucumber, red onion and crumbled feta cheese.
6Add grilled chicken and generously coat with homemade Greek yogurt tzatziki