Knorr spinach dip

INGREDIENTS 
1 box (10 oz.) frozen chopped spinach, cooked, cooled and squeezed dry
1 container (16 oz.) sour cream*
1 cup Hellmann's® or Best Foods® Real Mayonnaise
1 package Knorr® Vegetable recipe mix
1 can (8 oz.) water chestnuts, drained and chopped (optional)
3 green onions, chopped (optional)

DIRECTIONS
Combine all ingredients and chill about 2 hours. Serve with French bread like bread or crackers *TIP: To lighten up dip, substitute 1 container (16 oz.) nonfat plain Greek yogurt.