Cook the couscous according to the package and seta side.
Season the chicken with salt, pepper, and garlic powder.
In a large dutch oven or pot, add the olive oil and brown the chicken. Once browned, add in the onions and sautee together for about 3-4 minutes.
Add in the potatoes and carrots and cook for about 30 minutes. Season with more salt and pepper. Cover and cook.
Next, add in the zucchini and chickpeas, Cover and cook for another 15 minutes. Adjust seasoning as needed and serve over couscous.