Tropical Shake


1 medium size ripe banana, cut into 1 inch slices
2 tsp lemon juice
1 medium mango, peeled and cut into pieces
1 1/2 cup pineapple orange juice, chilled
1 (8 oz) container nonfat vanilla yogurt


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 juice, and yogurt in a blender
until smooth, stopping to scrape down sides.  Pour into chilled glasses, serve immediately.