Grilled Tuna Steaks with Potato & Green Been Salad

From Rachel Ray ... This recipe is so simple and so good!!!! I made it very easily after work one night in no time at all!

Ingredients
1/3 cup EVOO (extra-virgin olive oil)
4 six ounce tuna steaks, 1 inch thick
Salt and pepper
1 pound small red or yellow potatoes, cut in half
1 1/2 pound green beans, cut into 1-inch pieces
1 cup packed basil leaves
1/4 cup toasted pine nuts
1 clove garlic
1 teaspoon grated lemon peel
1/2 cup grated Parmigiano-Reggiano

Preparation
Preheat an outdoor grill or a grill pan to medium-high. Drizzle EVOO on both sides of the tuna steaks; season with salt and pepper.In a medium pot, cover the potatoes with cold water and bring to a boil. Salt the water, lower the heat and simmer for 10 minutes. Add the beans; cook for 4 minutes.While the potatoes cook, using a food processor, puree the basil, pine nuts, garlic, lemon peel, 1 1/2 teaspoons salt and 1/2 teaspoon pepper. With the machine on, pour in the 1/3 cup EVOO in a steady stream. Transfer the pesto to a large bowl and stir in the cheese.Grill the tuna steaks for 2 minutes on each side for medium-rare.Drain the potatoes and beans, add to the pesto and toss to coat; season to taste with salt and pepper. Serve alongside the tuna steaks.