Ingredients:
- 12 ounces haricots verts
- 2 tablespoons toasted walnut oil
- 1 1/2 tablespoons fresh lemon juice
- 1 tablespoon white balsamic vinegar
- 1 tablespoon water
- 2 teaspoons minced fresh garlic
- 1 1/2 teaspoons Dijon mustard
- 2 teaspoons honey
- 1/2 teaspoon kosher salt, divided
- 1 (15 1/2-ounce) can unsalted chickpeas (garbanzo beans), rinsed and drained
- 2 cups grape tomatoes, halved
- 1/4 cup chopped walnuts, toasted
- 2 tablespoons shaved Parmigiano-Reggiano cheese
- 1 ounce sliced pitted kalamata olives
- 2 (8-ounce) tuna steaks (about 1 1/2 inches thick)
- 1/8 teaspoon black pepper
- Cooking spray
