Place chicken pieces in a 10 x 10-inch casserole dish, and sprinkle with 1/4 teaspoon salt and 1/4 teaspoon pepper.
Combine the remaining salt and pepper, nonfat yogurt, lime juice, and next 5 ingredients (yogurt through garlic) in a bowl, and stir well. Pour the yogurt mixture over the chicken; cover and marinate in refrigerator for at least 8 hours.
Uncover and sprinkle with paprika. Cover with wax paper, and microwave at HIGH for 18 to 20 minutes, rotating dish a half-turn after 9 minutes. Let stand, covered, 10 minutes. Remove the chicken from dish, and discard yogurt mixture. Serve the chicken over hot couscous.