Slice the chicken breast thinly.
Wash and prepare romaine or iceberg lettuce leaves.
Season the chicken breast with salt and pepper.
Drizzle oil in a pan and cook the chicken breast on both sides.
Let the chicken breast cool, then slice it thinly.
Place chicken breast and desired vegetables (such as tomato, cucumber, etc.) on the lettuce leaf.
Add your preferred sauce.
Wrap the filling with lettuce to complete the lettuce wrap.