1 cup non-fat vanilla yogurt
1/2 cup orange juice
1 cup fresh or canned pineapple chunks
Place yogurt and fruit in large plastic bag, flatten and freeze overnight. Combine fruit, yogurt, and juice in food processor or blender and blend smooth. Serve immediately or place back in the freezer to harden until ready to serve, up to 1 hour, stirring occasionally. Stir before serving.