- 2 (6- to 7-inch-long) zucchini, trimmed
- 3 tablespoons extra-virgin olive oil, divided, plus additional for brushing
- 16 fresh basil leaves
- 4 (6-ounce) pieces halibut or salmon fillet (preferably wild salmon), skinned
- 1 tablespoon fresh lemon juice
- Equipment: a Y-shaped vegetable peeler
- Shave zucchini lengthwise into very thin ribbons with peeler.
- For each piece of fish, arrange about 5 slices of zucchini on a work surface, side by side, overlapping each slice by half. Brush zucchini with oil, then lightly season with salt and pepper. Lay 2 basil leaves across center of each group of zucchini slices.
- Pat fish dry, then sprinkle with 1/4 teaspoon salt and 1/4 teaspoon pepper (total) and arrange crosswise on zucchini, covering basil leaves. Top each piece of fish with 2 basil leaves, then wrap zucchini around fish, overlapping ends.
- Put 1 tablespoon oil in a 12-inch nonstick skillet and swirl to coat bottom, then arrange fish, seam sides down, in oil. Lightly brush tops of zucchini and fish with oil.
- Cover skillet and cook fish over medium heat, without turning, until barely cooked through, 6 to 9 minutes, depending on thickness of fillets (fish will continue to cook from residual heat).
- Transfer fish to plates, then stir lemon juice and remaining 2 tablespoons oil into juices in skillet and season sauce with salt and pepper. Drizzle sauce over fish.