- 4 sushi-grade tuna steaks (3 ounces each)
- Salt and freshly ground black pepper
- Nonstick cooking spray
- 12 ounces haricots verts or slim green beans, trimmed
- Juice and grated zest of 1 lemon
- 1 garlic clove, minced
- 2 tablespoons wasabi paste
- 4 scallions (white and green parts), sliced thin on the diagonal
- 3 tablespoons black sesame seeds
- Bring a large pot of salted water to a boil. Preheat a grill or grill pan over high heat.
- Season the tuna steaks with salt and pepper to taste, and spray them lightly with cooking spray. When the grill is hot, add the tuna and cook for 1½ minutes per side for medium-rare. Transfer the tuna to a platter and allow it to rest, uncovered, for 5 minutes.
- Meanwhile, cook the haricots verts in the boiling water until they are just tender, about 3 minutes; drain.
- In a medium bowl, whisk together the lemon juice and zest, garlic, and wasabi paste. Add the haricots verts, scallions, and sesame seeds. Toss to coat, adding salt and pepper to taste.
- Thinly slice the tuna. Fan each portion onto each of 4 plates. Pile a mound of dressed haricots verts on top of the tuna, and serve.