Lite Creamy Spinach Dip

Ingredients

• 1 1/2 c. plain yogurt or sour cream
• 1/2 c. reduced-calorie mayonnaise
• 1 tsp. dried dill weed
• 1/2 tsp. celery salt
• 1/4 c. chopped green onions
• 2 c. Green Giant frozen cut leaf spinach, thawed and well drained (from 16 oz. pkg.)
• 3 Tbsp. chopped red bell pepper (if desired)
• 1 (8 oz.) can water chestnuts, drained and finely chopped