Coat turkey pieces with coating mix according to package directions. Arrange in a single layer in a 8 inch baking dish. Bake uncovered at 400 F for 40 minutes. In a medium skillet, melt butter. Add sugar, stirring constantly until melted. Stir orange juice and rum into cornstarch; whisk together and gradually add to sugar mixture. Bring mixture to a boil, reduce heat and simmer, stirring constantly, until sauce is thick and clear (about 3 minutes). Add bananas and cook until heated through (about 1 minute). Place baked turkey on serving plate; pour banana sauce over turkey and serve. Makes 4 servings.