1 (10-oz.) package frozen chopped spinach, defrosted
1 cup low-fat mayonnaise
1 cup non-fat sour cream
1 (8-oz.) can water chestnuts, drained and finely chopped
3 green onions, chopped
1 packet Knorr vegetable soup mix
Drain the spinach and squeeze dry. In a medium bowl, combine the rest of the ingredients. Add spinach and mix well.
Refrigerate 3 hours before serving.