Cut the chicken breast into bite-sized pieces.
Boil the rice noodles and rinse them in cold water.
Julienne the lettuce, cucumber, and carrot.
Heat olive oil in a pan and grill the chicken breast, then let it cool.
Make the sauce for Bun Cha and serve it with the prepared ingredients.
In a bowl, place boiled rice noodles, vegetables, and grilled chicken breast, then drizzle with sauce.