Add the chicken thighs into the bowl and mix them well until all the chicken pieces are covered with marinade. Let the chicken thighs marinate for half an hour.
Repeat the same with the potatoes and peppers. Arrange the eggplants on the bottom of your dish, and then spread the potatoes on top. Sprinkle on some seasoning.
Mix 150 ml of water with the reserved marinade, and spread it on top of the chicken. Place the dish in oven and bake it until the chicken is nicely charred.