Warm the wrap: Heat your tortilla or flatbread in a dry skillet over medium heat for 30–45 seconds per side until pliable. This helps prevent cracking and makes rolling easier.
Season the chicken: Toss the cooked chicken with olive oil, oregano, a pinch of salt and pepper, and the lemon juice if using.
If it’s cold from the fridge, warm it gently in the skillet for 2–3 minutes.
Prep the veggies: Chop cucumbers and tomatoes into small pieces so they tuck neatly into the wrap. Slice the onion thin. Pat the veggies dry with a paper towel to keep the wrap from getting soggy.
Spread the base: Lay the warm wrap on a board.
Spread the tzatziki down the center, leaving about 1–2 inches at the bottom for folding.
Layer the fillings: Add the greens first, then chicken, cucumbers, tomatoes, onion, and olives. Sprinkle the feta over the top. Keep the pile narrow and even so it rolls neatly.
Fold and roll: Fold the bottom edge up over the filling, then fold in the sides.
Roll tightly from the bottom up like a burrito. If your wrap is small, don’t overfill—save a bit on the side to nibble.
Optional sear: For a café-style finish, place the wrap seam side down in a warm skillet for 1–2 minutes per side to lightly toast and seal.
Serve: Slice in half on the bias. Add extra tzatziki or a lemon wedge on the side if you like.