Cook couscous on stovetop according to instructions on box. When couscous is done cooking, fluff with fork.
Heat small skillet over medium heat and add olive oil. Add chopped bell peppers and sauté for 4-5 minutes or until soft. Once bell peppers are soft, add Kalamata olives and mix well.
Combine sautéed bell peppers and olives to the couscous in the pot, mix well and transfer in a serving bowl.