Prepare the ingredients: Wash and prepare the vegetables. Finely chop the onion, dice the tomato and zucchini, chop the peppers, and cut the chicken breast into bite-sized pieces.
Sauté the onion: Heat the oil in a large pot or deep skillet over medium heat. Add the onion and cook for a few minutes, stirring occasionally, until soft and translucent.
Cook the chicken and vegetables: Add the peppers, tomato, and chicken. Cook for about 10 minutes, stirring occasionally, until the vegetables begin to soften and the chicken is lightly cooked.
Add the rice and zucchini: Add the uncooked rice, zucchini, and seasonings. Stir well until everything is evenly combined and coated with the spices.
Add the water: Pour in the water and stir. Cover the pot and reduce the heat to low.
Simmer: Cook gently for about 15-20 minutes, stirring occasionally, until the rice is tender and most of the liquid has been absorbed.
Serve: Remove from the heat and sprinkle with fresh parsley, if desired. Serve warm with yogurt or sour cream, a fresh salad, and a squeeze of lemon juice.