In a bowl, combine ground turkey, diced onion, bread crumbs, and chopped cilantro. Add cumin, paprika, salt, and pepper to the mixture. If it holds together, you don't need to use an egg.
Assemble the pita by spreading a spoonful of tahini sauce on the pita's inner surface. Place a couple of the cooked turkey kebabs on the sauce. Drizzle some harissa for a spicy kick.
Add a few pickles. Sprinkle more fresh cilantro over the kebabs. Drizzle with lemon juice. Carefully roll up the pita, enclosing the ingredients snugly.