Knorr vegetable soup is the name of the dry soup mix used to make cold spinach dip.

Knorr Spinach Dip

Mix together:
one pkg Knorr Vegetable Soup Mix
1 (16 oz) container sour cream
1 cup mayonnaise
1 (10 oz.) pkg thawed and drained frozen spinach
1 small can water chestnuts, chopped, optional

Let stand in refrigerator for a couple of hours.
Serve with crusty bread.
Everyone loves it.