Preheat your grill or oven to medium-high heat.
In a small bowl, mix together the harissa paste, olive oil, cumin, coriander, salt, and pepper. Coat the chicken breasts with this mixture, ensuring they are well coated.
Place the chicken breasts on the grill or in a baking dish if using the oven. Cook for about 6-8 minutes per side, or until the chicken is cooked through and no longer pink in the center. If using an oven, bake the chicken at 400°F (200°C) for about 20-25 minutes.
While the chicken is cooking, prepare the remaining ingredients.In a large bowl, combine the cooked couscous, cherry tomatoes, diced cucumber,and chopped cilantro. Toss everything together until well combined.
Once the chicken is cooked, remove it from the grill or oven andlet it rest for a few minutes. Then, slice the chicken into thin strips.
To assemble the bowls, divide the couscous mixture among fourbowls. Top each bowl with the sliced harissa chicken.
Serve the Harissa Chicken Bowls with lemon wedges on the sidefor squeezing over the chicken. You can also garnish with additional cilantroif desired.