Preheat grill or a nonstick sauté pan. Coat the Tuna with mustard. Mix the peppercorns and cilantro and cover the Tuna. Sear the Tuna on a very hot grill or in a sauté pan and cook 2 minutes on each side. Remove and slice very thinly . Place while still hot on the mesclun greens. Top with the fresh lime juice, , and red pepper. Serve immediately. Nutritional information Calories 280, protein 41g,Protein 41g, Fat 10g, Sat Fat 2.5g, Cholesterol 7 mg, Fiber 2g, Sodium 240 mg From the cookbook of George Hirsch "Living It Up"