- 1 pound skinless swordfish steak (about 1 inch thick), cut into 1-inch cubes
- 1 tablespoon fresh lemon juice
- 1/2 teaspoon dried oregano, crumbled
- 4 loaves 6- to 7-inch pita bread (preferably pocketless)
- 1 large cucumber
- an 8-ounce container plain low-fat yogurt
- 1 1/2 teaspoons chopped fresh mint leaves
- 1/2 teaspoon chopped garlic, mashed to a paste with 1/2 teaspoon salt
- 2 medium plum tomatoes, chopped coarse
- 1/2 small red onion, cut into slivers
- 1/4 cup fresh flat-leafed parsley leaves, washed well, spun dry, and torn
- four 12-inch bamboo skewers, soaked in water 1 hour
- Preheat oven to 200°F. Prepare grill.
- In a bowl toss swordfish with lemon juice, oregano, and salt and pepper to taste and marinate, covered and chilled, 15 minutes.
- Wrap pitas in foil and keep warm in oven. Peel and seed cucumber and grate coarse. Wrap cucumber in a kitchen towel and squeeze to extract liquid. In a small bowl stir together cucumber, yogurt, mint, garlic paste, and salt and pepper to taste. In another bowl combine tomatoes, onion, parsley, and salt and pepper to taste.
- Thread fish onto skewers and grill on an oiled rack set 5 to 6 inches over glowing coals, turning once, until just cooked through, about 8 minutes. Remove fish from skewers. (Alternatively, cook fish in a heated well-seasoned ridged grill pan in same manner.)
- Divide cucumber mixture among pitas, spreading to cover, and top with fish. Sprinkle tomato mixture over fish and roll pitas into cones, wrapping with parchment paper or foil to secure.