Season the swordfish and drizzle with oil, then pan-fry or grill for 5 minutes over a high heat on each side, or until cooked. Transfer to plates.
Peel and finely slice the garlic, then segment the lemon.
Heat 1 tablespoon of oil in a frying pan over a high heat, add the garlic and tomatoes and sauté for 5 minutes, or until lightly golden.
Finely chop and add the parsley leaves, season with black pepper, stir, then pour over the fish and serve.
Serve with warm, fresh crusty bread or pilau rice