1 (3 oz.) pkg. cream cheese, softened
2 tsp. mayonnaise or salad dressing
2 tsp. milk
1/4 c. diced celery
2 tsp. chopped pecans
1/2 c. frozen whipped dessert topping, thawed
3 c. chilled melon balls

With rotary beater, beat together first 3 ingredients until smooth and fluffy. Add celery and nuts; fold in thawed topping. Chill. Divide melon balls into 6 lettuce cups. Top each serving with cheese mixture.