Pat the chicken breasts dry with paper towels.
Rub both sides with olive oil, turmeric, salt, and black pepper.
Heat a skillet over medium heat.
Cook the chicken for about 5 to 7 minutes per side, or until fully cooked through.
Remove from heat and let it rest for 5 minutes.
Slice the chicken thinly.
Slice or mash the avocado.
Wash and shred the lettuce if needed.
Slice the cucumber.
Mix Greek yogurt with lemon juice if using.
Lay the tortilla flat on a clean surface.
Add shredded lettuce first.
Top with sliced turmeric chicken.
Add cucumber and avocado.
Spoon yogurt sauce on top if using.
Fold in the sides and roll tightly.
Slice in half and serve.