To make the vegetable minestrone, heat the oil in a large saucepan over medium heat. Add the garlic and cook just until it starts to sizzle; do not brown. Add the herbs, juice, stock and peper and bring to a boil. Reduce heat to low and simmer for 3 minutes. Set aside.
2.
To make the couscous, combine the stock, pepper, herbs and oil in a small saucepan and bring to a boil. Add the couscous, mix well and remove from the heat. Cover tightly and allow to stand for at least 5 minutes, or until all of the liquid has been absorbed. Set aside.
3.
Wash the swordfish and pat it dry. Rub the surface with a little olive oil and sprinkle with salt, freshly ground black pepper and herbs, if desired. Cook over a charcoal grill or under a broiler just until it turns from translucent to opaque, about 3 to 4 minutes per side. Do not overcook or the fish will become tough.
4.
To serve, place a rounded 1/2 cup of couscous on each of 4 plates and top with a piece of grilled swordfish. Spoon the minestrone around each serving, dividing it equally. Garnish each serving with a sprig of fresh thyme or rosemary, if desired.
