Home-made low FODMAP chicken shawarma

Name: Home-made low FODMAP chicken shawarma
Prep time: 30 min
Total time: 30 min
Ingredients: 4 gluten-free pita’s or spelt pita’, if you tolerate spelt; 400 g chicken breast; iceberg lettuce; 2 tomatoes; 1 bell pepper; (I did this without measuring, I will give the proportions of the different spices, but you can best decide for yourself how much of the mixture you want to make); 2 x black pepper; 2 x ground turmeric; 2 x ground ginger; 2 x paprika powder; 2x cumin seed; 1 x salt; 1 x red pepper; 1 x nutmeg; 1 x dried parsley; 1 x cinnamon; 2 tablespoons of olive oil; 6 tablespoons of (lactose-free) yoghurt; pepper; salt; dried parsley; a splash of lemon juice