1 bag fresh spinach
1 (11 oz.) can mandarin oranges, drained
1/2 c. walnut pieces
1 c. sliced mushrooms
3 tbsp. sliced scallions
6 slices bacon, cooked and crumbled
3 tbsp. frozen orange juice concentrate
6 tbsp. real mayonnaise

Combine all ingredients except orange juice concentrate and mayonnaise. Mix concentrate and mayonnaise. Pour over salad just before serving.