Coarsely grate the cucumber in a bowl and sprinkle with the salt.
Let it stand for 5 minutes and then use a cheesecloth (or your hands) to squeeze most of the moisture out.
Mix well with the yogurt, garlic, herbs and lemon juice and drizzle with olive oil. Cover and put in the fridge until needed to allow the flavours to develop.
Marinate the meat
Slice the chicken into bite sized pieces, removing any large pieces of fat.
Mix all the ingredients for the marinade in a bowl. Add the diced meat, mix to combine, cover and leave to marinate for at least 30 minutes in the fridge.
Make the souvlaki
Thread the chicken on the skewers and preheat the Air Fryer for 3 minutes at 190°C (375°F).
Place the skewers on a rack and air fry for 10 minutes, flipping over halfway through.
Serve the souvlaki
Mix the sliced onion with the chopped parsley and have all your souvlaki fillings ready.
Briefly pan fry the pitas to warm them up then add a little onion, tzatziki and sliced tomatoes.
Add the meat (off the skewers) and season with a little smoked paprika. Wrap the pitta around the fillings, using a little greaseproof paper to hold everything together if you like. Eat immediately!
Video
Notes
You can use store-bought pita bread or make my super easy two ingredient flatbreads or Greek pita breads to serve your souvlaki with.