You need 1 ingredient. The key ingredients include: ["Mediterranean Lamb Burger with Feta Spread and Pistachio-Peach Salsa", "Feta Spread", "6 Tablespoons unsalted butter, softened", "4 Tablespoons feta cheese, crumbled", "2 green onions, chopped (white and light green parts, only)", "2 teaspoons grated lemon peel", "1/2 teaspoon kosher salt, or to taste", "1/4 teaspoon freshly ground black pepper, or to taste", "Salsa", "3 large peaches (peeled, pitted and finely diced)", "1/4 cup red bell pepper, seeded and finely diced", "2 green onions, chopped (white and light green parts, only)", "1 Tablespoon chopped green chiles (from a 4.5 ounce can)", "1 clove garlic, peeled and finely diced", "2 Tablespoons fresh cilantro, finely minced", "1/2 cup shelled pistachio nuts, coarsely chopped", "3 Tablespoons fresh lime juice", "Burgers", "1 3/4 pound ground lamb", "3 Tablespoons shelled pistachio nuts, coarsely chopped", "2 Tablespoons fresh rosemary, finely chopped", "1 teaspoon grated lemon peel", "1/4 teaspoon ground cumin", "1/4 teaspoon ground coriander", "1/2 teaspoon kosher salt, or to taste", "1/4 teaspoon freshly ground black pepper, or to taste", "2/3 cup Colavita(R) polenta", "6 Sesame buns, split"].