Season the chicken breast with salt and pepper, then boil or grill it until cooked.
Julienne the carrot finely, sprinkle with a little salt, and drain to remove excess moisture.
Mix olive oil, lemon juice, sugar, and pepper to make the dressing.
Add the dressing to the julienned carrots and mix to complete the carrot râpé.
Slice the bagel in half and lightly toast it in a toaster or on a pan.
Place the chicken breast and carrot râpé on top of the toasted bagel.
Finish by adding leafy greens and sauce to your liking.