Prepare couscous pasta according to package directions, using chicken broth for liquid. Drain and set aside.
In a large skillet combine the wine, oil, 1 tablespoon lime juice, 1 teaspoon cumin and garlic; mix all together and add chicken. Simmer over low heat until all liquid has evaporated and chicken juices run clear, 5 to 7 minutes.
Remove chicken from skillet and mix in a large bowl with remaining 1 tablespoon lime juice, remaining 1/2 teaspoon cumin, green bell pepper, red bell pepper, yellow bell pepper, green onion and couscous. Garnish with a few black olives per serving.