Heat oil in a skillet over medium heat. Add chicken and stir occasionally until it's mostly cooked through.

Add cumin and a pinch of salt and stir to coat the chicken and cook for another minute or two. Transfer chicken to a plate and set aside.

Add zucchini to the skillet and saute for about 8 minutes until zucchini has softened and is lightly browned.

Add the water to the skillet to deglaze and once it starts to boil, turn off the heat and stir in the couscous (and flavoring packet if it came with one). Let it sit for 3-5 minutes to allow the couscous to rehydrate.

Add the chicken back and serve.