Prepare tomato sauce. Put chopped tomatoes, basil, and garlic in a large bowl, sprinkle with salt and pepper and pour over with olive oil, mix well. Set the sauce bowl aside.
Pour couscous, salt, pepper into a large saucepan, pour oil, and pour boiling water. Cover the stewpan and leave at room temperature for 5 minutes, until the couscous is ready, and then loosen it with a fork, add beans, cheese, pine nuts, and basil.