How to Make It
Toss banana with lemon juice; drain, reserving lemon juice. Place banana slices on a baking sheet, and freeze 1 hour and 30 minutes.
Process frozen banana slices, reserved lemon juice, mango, 1 1/2 cups pineapple-orange juice, and yogurt in a blender until smooth, stopping to scrape down sides. Pour into chilled glasses; serve immediately.