1.Combine The Cantaloupe, Chile Pepper, Basil, 2 Tablespoons Olive Oil, Lime Juice, Salt, And Sugar In A Bowl. 2.Heat 2 Tablespoons Olive Oil In A Skillet. Season Tuna Steaks With Salt And Pepper. Cook Tuna In Oil For 3 Minutes Per Side. Spoon Cantaloupe Mixture Over Each Steak To Serve.