1 lg. box lime Jello
2 c. boiling water
1 (15 1/2 oz.) can crushed pineapple
1 (8 oz.) vanilla yogurt
1 c. Miracle Whip

In a large bowl, dilute Jello with boiling water. Add pineapple and yogurt and Miracle Whip. Stir until well blended. Chill in refrigerator for at least 3 hours. Top with coconut if desired.