Put the lettuce in a bowl. Halve the tomatoes, slice the onion and cut the red pepper into small strips. Put everything in the bowl.
Wash the chicken breast fillet, cut into cubes and place in a small bowl. Marinate with a little water, curry powder, chili powder, salt and pepper. Heat a little oil in a pan. Fry the marinated chicken cubes in it until golden brown. The marinade gives the meat a nice brown color. Add the fried meat to the salad.
Season the natural yoghurt with a little salt, pepper and a little curry, mix and then pour over the salad. Mix the salad well and serve.