Ingredients

• 1 medium red onion, diced
• 4 fresh tuna steaks, about 6 ounces each
• 1 tablespoon pure olive oil
• Kosher salt and freshly ground black pepper to taste
• 2 cups arugula, washed and dried
• 1-1/4 cups basil vinaigrette (recipe follows)
• 6 ounces cooked green beans
• 1-1/2 cups marinated baby artichokes, drained
• 8 ounces small red potatoes, diced and cooked
• 1 pound vine-ripened tomatoes, cored and diced
• 1 large fennel bulb, very thinly sliced
• 1 tablespoon Dijon mustard
• 2 tablespoons white wine vinegar
• 1/2 teaspoon kosher salt
• Freshly ground black pepper
• 1/4 cup prepared basil oil
• 3/4 cup extra-virgin olive oil

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Instructions

1. Heat a grill or grill-pan to medium.
2. In a small bowl soak the onions in cold water to cover for 10 minutes. Drain.
3. Brush the tuna with olive oil and season with salt and pepper. Grill the fish, turning once, about 5 minutes per side. Set aside.
4. In a large bowl toss the arugula with a couple tablespoons of the vinaigrette, and divide the greens onto 4 dinner plates. In the same bowl combine the green beans, artichokes, potatoes, onion, tomatoes, and fennel. Dress the vegetables with a 1/2 cup of the dressing, season with salt and pepper. Place vegetables on the greens and top the salad with the tuna steaks. Drizzle a little dressing over the tuna and serve. Pass the remaining dressing at the table.
5. In a small bowl, whisk the mustard, vinegar, salt, and pepper together. Combine the oils in a cup with a spout. Gradually pour the oil into the vinegar mixture while whisking constantly to make a creamy dressing.