Couscous is a grain and is counted as a carbohydrate and not a particularly favourable carb at that.
In 1 cup (157 g) of cooked couscous there is
Protein 6 g (less than 1 block)
Carbohydrate 36 g (more than 5 blocks)
Rather than using couscous, use cauliflower rice with lots of favourable vegetables like spinach, broccoli, some carrot and add fresh nuts, avocado or a good kiwi olive oil for fat.